SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No.__)*

                        Alliance Data Systems Corporation
                                (Name of Issuer)

                          Common Stock, Par Value $0.01
                         (Title of Class of Securities)

                                    018581108
                                 (CUSIP Number)

                              Keith Schaitkin, Esq.
                                Icahn Capital LP
                          767 Fifth Avenue, 47th Floor
                            New York, New York 10153
                                 (212) 702-4388
           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)

                                January 30, 2008
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  that is the subject of this  Schedule  13D, and is filing this
schedule because of Section  240.13d-1(e),  240.13d-1(f) or 240.13d-1(g),  check
the following box / /.

NOTE:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Partners Master Fund LP

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     939,929

8  SHARED VOTING POWER
     0

9  SOLE DISPOSITIVE POWER
     939,929

10 SHARED DISPOSITIVE POWER
     0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     939,929

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     1.19%

14 TYPE OF REPORTING PERSON
     PN





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Partners Master Fund II LP

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     293,508

8  SHARED VOTING POWER
     0

9  SOLE DISPOSITIVE POWER
     293,508

10 SHARED DISPOSITIVE POWER
     0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     293,508

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     0.37%

14 TYPE OF REPORTING PERSON
     PN





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Partners Master Fund III LP

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Cayman Islands

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     111,352

8  SHARED VOTING POWER
     0

9  SOLE DISPOSITIVE POWER
     111,352

10 SHARED DISPOSITIVE POWER
     0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     111,352

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     0.14%

14 TYPE OF REPORTING PERSON
     PN




                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Offshore LP

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     1,344,789

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     1,344,789

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     1,344,789

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     1.71%

14 TYPE OF REPORTING PERSON
     PN





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Partners LP

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     803,411

8  SHARED VOTING POWER
     0

9  SOLE DISPOSITIVE POWER
     803,411

10 SHARED DISPOSITIVE POWER
     0

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     803,411

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     1.02%

14 TYPE OF REPORTING PERSON
     PN





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Onshore LP

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     803,411

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     803,411

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     803,411

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES  /  /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     1.02%

14 TYPE OF REPORTING PERSON
     PN





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Capital LP

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     2,148,200

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     2,148,200

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     2,148,200

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     2.73%

14 TYPE OF REPORTING PERSON
     PN





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     IPH GP LLC

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     2,148,200

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     2,148,200

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     2,148,200

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     2.73%

14 TYPE OF REPORTING PERSON
     OO





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Enterprises Holdings L.P.

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     2,148,200

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     2,148,200

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     2,148,200

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     2.73%

14 TYPE OF REPORTING PERSON
     PN





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Icahn Enterprises G.P. Inc.

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     2,148,200

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     2,148,200

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     2,148,200

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     2.73%

14 TYPE OF REPORTING PERSON
     CO





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Beckton Corp.

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS
     WC

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     2,148,200

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     2,148,200

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     2,148,200

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     2.73%

14 TYPE OF REPORTING PERSON
     CO





                                  SCHEDULE 13D

CUSIP No.  018581108

1  NAME OF REPORTING PERSON
     Carl C. Icahn

2  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
     (a) / /
     (b) / /

3  SEC USE ONLY

4  SOURCE OF FUNDS

5  CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                        / /

6  CITIZENSHIP OR PLACE OF ORGANIZATION
     United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7  SOLE VOTING POWER
     0

8  SHARED VOTING POWER
     2,148,200

9  SOLE DISPOSITIVE POWER
     0

10 SHARED DISPOSITIVE POWER
     2,148,200

11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     2,148,200

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES     / /

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
     2.73%

14 TYPE OF REPORTING PERSON
     IN





                                  SCHEDULE 13D

Item 1. Security and Issuer

     This statement relates to the Common Stock, par value $0.01 (the "Shares"),
issued by Alliance Data Systems  Corporation (the "Issuer").  The address of the
principal  executive offices of the Issuer is 17655 Waterview  Parkway,  Dallas,
Texas 75252.

Item 2. Identity and Background

     The persons filing this statement are Icahn Partners Master Fund LP ("Icahn
Master"),  Icahn Partners Master Fund II LP ("Icahn Master II"),  Icahn Partners
Master Fund III LP ("Icahn Master III"),  Icahn Offshore LP ("Icahn  Offshore"),
Icahn Partners LP ("Icahn Partners"),  Icahn Onshore LP ("Icahn Onshore"), Icahn
Capital LP ("Icahn  Capital"),  IPH GP LLC ("IPH"),  Icahn Enterprises  Holdings
L.P.  ("Icahn  Enterprises  Holdings"),  Icahn  Enterprises  G.P.  Inc.  ("Icahn
Enterprises GP"), Beckton Corp.  ("Beckton"),  and Carl C. Icahn  (collectively,
the "Reporting Persons").

     The  principal  business  address  of each  of (i)  Icahn  Offshore,  Icahn
Partners,  Icahn Onshore, Icahn Capital, IPH, Icahn Enterprises Holdings,  Icahn
Enterprises  GP and Beckton is White Plains Plaza,  445 Hamilton  Avenue - Suite
1210,  White  Plains,  NY 10601,  (ii) Icahn  Master,  Icahn Master II and Icahn
Master III is c/o Walkers SPV Limited,  P.O. Box 908GT,  87 Mary Street,  George
Town, Grand Cayman,  Cayman Islands, and (iii) Mr. Icahn is c/o Icahn Associates
Corp., 767 Fifth Avenue, 47th Floor, New York, NY 10153.

     Icahn Offshore is the general partner of each of Icahn Master, Icahn Master
II and Icahn Master III. Icahn Onshore is the general partner of Icahn Partners.
Icahn  Capital  is the  general  partner  of each of Icahn  Offshore  and  Icahn
Onshore.  Icahn  Enterprises  Holdings is the sole  member of IPH,  which is the
general  partner  of Icahn  Capital.  Beckton is the sole  stockholder  of Icahn
Enterprises GP, which is the general partner of Icahn Enterprises Holdings. Carl
C. Icahn is the sole stockholder of Beckton. As such, Mr. Icahn is in a position
indirectly to determine the investment and voting  decisions made by each of the
Reporting   Persons.   In  addition,   Mr.  Icahn  is  the  indirect  holder  of
approximately  91% of the  outstanding  depositary  units  representing  limited
partnership  interests in Icahn  Enterprises L.P. ("Icahn  Enterprises").  Icahn
Enterprises GP is the general  partner of Icahn  Enterprises,  which is the sole
limited partner of Icahn Enterprises Holdings.

     Each of Icahn Master,  Icahn Master II, Icahn Master III and Icahn Partners
is primarily engaged in the business of investing in securities.  Icahn Offshore
is primarily  engaged in the business of serving as the general  partner of each
of Icahn  Master,  Icahn  Master II and  Icahn  Master  III.  Icahn  Onshore  is
primarily  engaged in the  business of serving as the  general  partner of Icahn
Partners.  Icahn Capital is primarily  engaged in the business of serving as the
general  partner of each of Icahn Offshore and Icahn  Onshore.  IPH is primarily
engaged in the  business  of serving as the  general  partner of Icahn  Capital.
Icahn  Enterprises  Holdings  is  primarily  engaged in the  business of holding
direct or indirect interests in various operating businesses.  Icahn Enterprises
GP is  primarily  engaged in the  business of serving as the general  partner of
each of Icahn Enterprises and Icahn Enterprises  Holdings.  Beckton is primarily
engaged in the business of holding the capital stock of Icahn Enterprises GP.

     Carl C. Icahn's  present  principal  occupation or employment is serving as
(i) Chief  Executive  Officer of Icahn Capital LP, a wholly owned  subsidiary of
Icahn  Enterprises,  through which Mr. Icahn manages various private  investment
funds, including Icahn Partners,  Icahn Master, Icahn Master II and Icahn Master
III, (ii) Chairman of the Board of Icahn  Enterprises GP, the general partner of
Icahn Enterprises,  a New York Stock Exchange listed diversified holding company
engaged in a variety of businesses,  including  investment  management,  metals,
real estate and home fashion,  and (iii) Chairman of the Board and a director of
Starfire  Holding  Corporation  ("Starfire"),  a holding  company engaged in the
business of investing in and/or holding  securities of various entities,  and as
Chairman of the Board and a director of various of Starfire's subsidiaries.

     The name,  citizenship,  present  principal  occupation or  employment  and
business address of each director and executive officer of the Reporting Persons
are set forth in Schedule A attached hereto.

     None of the Reporting  Persons nor any manager or executive  officer of the
Reporting  Persons,  has,  during the past five years,  (a) been  convicted in a
criminal proceeding (excluding traffic violations or similar  misdemeanors),  or
(b) been a party to a civil proceeding of a judicial or  administrative  body of
competent jurisdiction and as a result of such proceeding was or is subject to a
judgment,  decree or final order enjoining future violations of, or prohibiting,
or  mandating  activities  subject  to,  Federal or State  securities  laws or a
finding of any violation with respect to such laws.

Item 3. Source and Amount of Funds or Other Consideration

     The  aggregate  purchase  price  of  the  2,148,200  Shares  deemed  to  be
beneficially owned by Icahn Master,  Icahn Master II, Icahn Master III and Icahn
Partners  (which  includes  Shares  that may be acquired  upon  exercise of call
options),  collectively, was $90,759,144 (including commissions, option premiums
and the  strike  price of the call  options).  The  source  of  funding  for the
purchase  of these  Shares was the  general  working  capital of the  respective
purchasers.  The Shares are held by the  Reporting  Persons in margin  accounts.
Such  margin  accounts  may from time to time have debit  balances.  Since other
securities are held in such margin accounts, it is not possible to determine the
amounts, if any, of margin used with respect to the purchase of the Shares.

Item 4. Purpose of Transaction

     The Reporting  Persons acquired their positions in the Shares in the belief
that they were  undervalued.  The Reporting Persons reserve the right to seek to
have  conversations  with  members  of the  Issuer's  management  regarding  the
transaction between the Issuer and affiliates of Blackstone Group. The Reporting
Persons may, from time to time and at any time, acquire additional Shares in the
open market or otherwise and reserve the right to dispose of any or all of their
Shares in the open market or otherwise,  at any time and from time to time,  and
to engage in any hedging or similar transactions with respect to the Shares.

Item 5. Interest in Securities of the Issuer

     (a) The  Reporting  Persons  may be  deemed  to  beneficially  own,  in the
aggregate, 2,148,200 Shares (including Shares that may be acquired upon exercise
of call options),  representing  approximately 2.73% of the Issuer's outstanding
Shares (based upon the 78,740,781 Shares stated to be outstanding as of November
2, 2007 by the Issuer in the Issuer's  Quarterly Report on Form 10-Q, filed with
the Securities and Exchange Commission on November 6, 2007).

     (b) Icahn  Master has sole  voting  power and sole  dispositive  power with
regard to 939,929 Shares (including Shares that may be acquired upon exercise of
call options).  Each of Icahn Offshore,  Icahn Capital,  IPH, Icahn  Enterprises
Holdings,  Icahn  Enterprises  GP, Beckton and Mr. Icahn has shared voting power
and shared  dispositive  power with regard to such  Shares.  Icahn Master II has
sole  voting  power and sole  dispositive  power with  regard to 293,508  Shares
(including  Shares that may be acquired upon exercise of call options).  Each of
Icahn  Offshore,   Icahn  Capital,  IPH,  Icahn  Enterprises   Holdings,   Icahn
Enterprises  GP,  Beckton  and Mr.  Icahn has  shared  voting  power and  shared
dispositive  power with regard to such Shares.  Icahn Master III has sole voting
power and sole dispositive power with regard to 111,352 Shares (including Shares
that may be acquired upon  exercise of call  options).  Each of Icahn  Offshore,
Icahn Capital,  IPH, Icahn Enterprises  Holdings,  Icahn Enterprises GP, Beckton
and Mr. Icahn has shared voting power and shared  dispositive  power with regard
to such Shares.  Icahn Partners has sole voting power and sole dispositive power
with  regard to 803,411  Shares  (including  Shares  that may be  acquired  upon
exercise of call  options).  Each of Icahn Onshore,  Icahn  Capital,  IPH, Icahn
Enterprises  Holdings,  Icahn  Enterprises  GP, Beckton and Mr. Icahn has shared
voting power and shared dispositive power with regard to such Shares.

         Each of Icahn Offshore, Icahn Capital, IPH, Icahn Enterprises Holdings,
Icahn Enterprises GP, Beckton and Mr. Icahn, by virtue of their relationships to
each of Icahn Master, Icahn Master II and Icahn Master III (as disclosed in Item
2),  may be deemed to  indirectly  beneficially  own (as that term is defined in
Rule 13d-3 under the Act) the Shares which each of Icahn Master, Icahn Master II
and Icahn Master III directly  beneficially owns. Each of Icahn Offshore,  Icahn
Capital, IPH, Icahn Enterprises Holdings,  Icahn Enterprises GP, Beckton and Mr.
Icahn disclaims beneficial ownership of such Shares for all other purposes. Each
     of Icahn Onshore, Icahn Capital, IPH, Icahn Enterprises Holdings, Icahn
Enterprises GP, Beckton and Mr. Icahn, by virtue of their relationships to Icahn
Partners (as disclosed in Item 2), may be deemed to indirectly  beneficially own
(as that term is  defined in Rule 13d-3  under the Act) the Shares  which  Icahn
Partners directly beneficially owns. Each of Icahn Onshore,  Icahn Capital, IPH,
Icahn  Enterprises  Holdings,  Icahn  Enterprises  GP,  Beckton  and  Mr.  Icahn
disclaims beneficial ownership of such Shares for all other purposes.

     (c) The following table sets forth all transactions  with respect to Shares
effected during the past sixty (60) days by any of the Reporting Persons. Except
as otherwise  indicated,  all transactions were effected in the open market, and
the table includes commissions paid in per share prices.


                                  Shares Purchased
     Name            Date              (Sold)              Price Per Share
----------------- ----------- -------------------------- --------------------
Icahn Partners        1/8/08                    144,961              73.4173
----------------- ----------- -------------------------- --------------------
Icahn Partners        1/9/08                    225,424              73.1047
----------------- ----------- -------------------------- --------------------
Icahn Partners       1/10/08                    343,156              71.7748
----------------- ----------- -------------------------- --------------------
Icahn Partners       1/28/08                    262,883              42.4827
----------------- ----------- -------------------------- --------------------
Icahn Partners       1/28/08                (1) 112,663          (2) 41.9732
----------------- ----------- -------------------------- --------------------
Icahn Partners       1/29/08                    225,329              41.8371
----------------- ----------- -------------------------- --------------------
Icahn Partners       1/29/08                 (1) 53,778          (2) 42.3034
----------------- ----------- -------------------------- --------------------
Icahn Partners       1/30/08                (1) 189,652          (2) 42.3638
----------------- ----------- -------------------------- --------------------
Icahn Partners        2/8/08                   (754,435)             54.9969
----------------- ----------- -------------------------- --------------------
Icahn Master          1/8/08                    167,730              73.4173
----------------- ----------- -------------------------- --------------------
Icahn Master          1/9/08                    260,831              73.1047
----------------- ----------- -------------------------- --------------------
Icahn Master         1/10/08                    397,052              71.7748
----------------- ----------- -------------------------- --------------------
Icahn Master         1/28/08                    304,174              42.4827
----------------- ----------- -------------------------- --------------------
Icahn Master         1/28/08                (1) 130,360          (2) 41.9732
----------------- ----------- -------------------------- --------------------
Icahn Master         1/29/08                    260,719              41.8371
----------------- ----------- -------------------------- --------------------
Icahn Master         1/29/08                 (1) 62,225          (2) 42.3034
----------------- ----------- -------------------------- --------------------
Icahn Master         1/30/08                (1) 219,440          (2) 42.3638
----------------- ----------- -------------------------- --------------------
Icahn Master          2/8/08                  (862,602)              54.9969
----------------- ----------- -------------------------- --------------------
Icahn Master II       1/8/08                     53,159              73.4173
----------------- ----------- -------------------------- --------------------
Icahn Master II       1/9/08                     82,664              73.1047
----------------- ----------- -------------------------- --------------------
Icahn Master II      1/10/08                    125,839              71.7748
----------------- ----------- -------------------------- --------------------
Icahn Master II      1/28/08                     96,402              42.4827
----------------- ----------- -------------------------- --------------------
Icahn Master II      1/28/08                 (1) 41,315          (2) 41.9732
----------------- ----------- -------------------------- --------------------
Icahn Master II      1/29/08                     82,630              41.8371
----------------- ----------- -------------------------- --------------------
Icahn Master II      1/29/08                 (1) 19,721          (2) 42.3034
----------------- ----------- -------------------------- --------------------
Icahn Master II      1/30/08                 (1) 69,547          (2) 42.3638
----------------- ----------- -------------------------- --------------------
Icahn Master II       2/8/08                   (277,769)             54.9969
----------------- ----------- -------------------------- --------------------
Icahn Master III      1/8/08                     20,150              73.4173
----------------- ----------- -------------------------- --------------------
Icahn Master III      1/9/08                     31,335              73.1047
----------------- ----------- -------------------------- --------------------
Icahn Master III     1/10/08                     47,699              71.7748
----------------- ----------- -------------------------- --------------------
Icahn Master III     1/28/08                     36,541              42.4827
----------------- ----------- -------------------------- --------------------
Icahn Master III     1/28/08                 (1) 15,662          (2) 41.9732
----------------- ----------- -------------------------- --------------------
Icahn Master III     1/29/08                     31,322              41.8371
----------------- ----------- -------------------------- --------------------
Icahn Master III     1/29/08                  (1) 7,476          (2) 42.3034
----------------- ----------- -------------------------- --------------------
Icahn Master III     1/30/08                 (1) 26,361          (2) 42.3638
----------------- ----------- -------------------------- --------------------
Icahn Master III      2/8/08                   (105,194)             54.9969
----------------- ----------- -------------------------- --------------------

---------------------
(1) Shares that may be acquired upon exercise of call options.
(2) Includes exercise price and option premium.



     (e) As a result of the  transactions  reported in this  Schedule  13D,  the
Reporting  Persons are no longer subject to the reporting  requirements  of Rule
13d-1(a) of the Exchange Act.

Item 6. Contracts, Arrangements,  Understandings or Relationship with Respect to
        Securities of the Issuer

     The Reporting Persons have sold  European-style put options  referencing an
aggregate of 948,200  Shares.  The agreements  provide that they settle in cash.
The per share  cash  settlement  amount  of put  options  sold by the  Reporting
Persons will be equal to the difference  between (i) an initial  reference price
(as adjusted to account for any dividends or other distributions declared by the
Issuer prior to settlement of the options) and (ii) the volume-weighted  average
price per Share during a period of trading days  following the  settlement  date
(if lower than the initial  reference  price, as adjusted).  These agreements do
not  give the  Reporting  Persons  direct  or  indirect  voting,  investment  or
dispositive  control  over the  Shares to which  these  agreements  relate  and,
accordingly,  the Reporting  Persons  disclaim any  beneficial  ownership in the
Shares to which these agreements relate.

     Except as otherwise described herein, there are no contracts, arrangements,
understandings or relationships  (legal or otherwise) among the persons named in
Item 2 and between such persons and any person with respect to any securities of
the  Issuer,  including  but not  limited  to  transfer  or voting of any of the
securities,  finder's fees, joint ventures, loan or option arrangements, puts or
calls,  guarantees  of profits,  division  of profits or loss,  or the giving or
withholding of proxies.

Item 7. Material to be Filed as Exhibits

     1    Joint Filing Agreement of the Reporting Persons





                                    SIGNATURE

     After  reasonable  inquiry  and to the  best  of  each  of the  undersigned
knowledge and belief, each of the undersigned certifies that the information set
forth in this statement is true, complete and correct.

Dated: February 11, 2008

ICAHN PARTNERS MASTER FUND LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN PARTNERS MASTER FUND II LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN PARTNERS MASTER FUND III LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN OFFSHORE LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN PARTNERS LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN ONSHORE LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory





ICAHN CAPITAL LP
         By: IPH GP LLC, its general partner
         By: Icahn Enterprises Holdings L.P., its sole member
         By: Icahn Enterprises G.P. Inc., its general partner

         By:  /s/ Andrew Skobe
              ----------------
              Name: Andrew Skobe
              Title: Chief Financial Officer

IPH GP LLC
         By: Icahn Enterprises Holdings L.P., its sole member
         By: Icahn Enterprises G.P. Inc., its general partner

         By:  /s/ Andrew Skobe
              ----------------
              Name: Andrew Skobe
              Title: Chief Financial Officer

ICAHN ENTERPRISES HOLDINGS L.P.
         By: Icahn Enterprises G.P. Inc., its general partner

         By:  /s/ Andrew Skobe
              ----------------
              Name: Andrew Skobe
              Title: Chief Financial Officer

ICAHN ENTERPRISES G.P. INC.

By:  /s/ Andrew Skobe
     ----------------
     Name: Andrew Skobe
     Title: Chief Financial Officer

BECKTON CORP.

By:  /s/ Edward E. Mattner
     ---------------------
     Name: Edward E. Mattner
     Title: Authorized Signatory


/s/ Carl C. Icahn
-----------------
CARL C. ICAHN



      [Signature Page of Schedule 13D - Alliance Data Systems Corporation]






                                                                       EXHIBIT 1

                             JOINT FILING AGREEMENT

     In accordance with Rule  13d-1(k)(1)  under the Securities  Exchange Act of
1934, as amended, the persons named below agree to the joint filing on behalf of
each of them of a statement on Schedule 13D (including  amendments thereto) with
respect to the Common  Stock of Alliance  Data Systems  Corporation  and further
agree that this Joint  Filing  Agreement be included as an Exhibit to such joint
filings.  In evidence  thereof,  the undersigned,  being duly  authorized,  have
executed this Joint Filing Agreement this 11th day of February, 2008.

ICAHN PARTNERS MASTER FUND LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN PARTNERS MASTER FUND II LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN PARTNERS MASTER FUND III LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN OFFSHORE LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN PARTNERS LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN ONSHORE LP

         By:  /s/ Edward E. Mattner
              ---------------------
              Name: Edward E. Mattner
              Title: Authorized Signatory

ICAHN CAPITAL LP
         By: IPH GP LLC, its general partner
         By: Icahn Enterprises Holdings L.P., its sole member
         By: Icahn Enterprises G.P. Inc., its general partner

         By:  /s/ Andrew Skobe
              ----------------
              Name: Andrew Skobe
              Title: Chief Financial Officer

IPH GP LLC
         By: Icahn Enterprises Holdings L.P., its sole member
         By: Icahn Enterprises G.P. Inc., its general partner

         By:  /s/ Andrew Skobe
              ----------------
              Name: Andrew Skobe
              Title: Chief Financial Officer

ICAHN ENTERPRISES HOLDINGS L.P.
         By: Icahn Enterprises G.P. Inc., its general partner

         By:  /s/ Andrew Skobe
              ----------------
              Name: Andrew Skobe
              Title: Chief Financial Officer

ICAHN ENTERPRISES G.P. INC.

By:  /s/ Andrew Skobe
     ----------------
     Name: Andrew Skobe
     Title: Chief Financial Officer

BECKTON CORP.

By:  /s/ Edward E. Mattner
     ---------------------
     Name: Edward E. Mattner
     Title: Authorized Signatory


/s/ Carl C. Icahn
-----------------
CARL C. ICAHN



           [Signature Page of Joint Filing Agreement to Schedule 13D -
                       Alliance Data Systems Corporation]





                                   SCHEDULE A

            DIRECTORS AND EXECUTIVE OFFICERS OF THE REPORTING PERSONS

     The following sets forth the name,  position,  and principal  occupation of
each director and executive officer of each of the Reporting Persons.  Each such
person  is a  citizen  of the  United  States of  America.  Except as  otherwise
indicated,  the  business  address  of each  director  and  officer is c/o Icahn
Associates Corp., 767 Fifth Avenue, 47th Floor, New York, New York 10153. To the
best of the Reporting Persons' knowledge,  except as set forth in this statement
on Schedule 13D,  none of the  directors or executive  officers of the Reporting
Persons own any Shares.

ICAHN PARTNERS MASTER FUND LP
ICAHN PARTNERS MASTER FUND II LP
ICAHN PARTNERS MASTER FUND III LP
Name                                Position
----                                --------
Icahn Offshore LP                   General Partner


ICAHN PARTNERS LP
Name                                Position
----                                --------
Icahn Onshore LP                    General Partner


ICAHN ONSHORE LP
ICAHN OFFSHORE LP
Name                                Position
----                                --------
Icahn Capital LP                    General Partner


ICAHN CAPITAL LP
Name                                Position
----                                --------
IPH GP LLC                          General Partner


IPH GP LLC
Name                                Position
----                                --------
Icahn Enterprises Holdings L.P.     Sole Member


ICAHN ENTERPRISES HOLDINGS L.P.
Name                                Position
----                                --------
Icahn Enterprises G.P. Inc.         General Partner


ICAHN ENTERPRISES G.P. INC.
Name                                Position
----                                --------
Carl C. Icahn                       Chairman
Keith A. Meister                    Vice Chairman; Principal Executive Officer
William A. Leidesdorf               Director
Jack G. Wasserman                   Director
James L. Nelson                     Director
Vincent J. Intrieri                 Director
Peter K. Shea                       President
Andrew Skobe                        Interim Chief Financial Officer; Treasurer
John P. Saldarelli                  Vice President; Secretary
Felicia P. Buebel                   Assistant Secretary


BECKTON CORP.
Name                                Position
----                                --------
Carl C. Icahn                       Chairman of the Board; President
Jordan Bleznick                     Vice President/Taxes
Edward E. Mattner                   Authorized Signatory
Keith Cozza                         Secretary; Treasurer