UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                                    Form 13F

                              Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: March 31, 2012

Check here if Amendment [  ]; Amendment Number:
This Amendment (Check only one.): [  ] is a restatement.
                                  [  ] adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name:    Fortress Investment Group LLC
Address: 1345 Avenue of the Americas, 46th Flr.
         New York, NY  10105

13F File Number:  028-12421

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:      David Brooks
Title:     Secretary, VP and General Counsel
Phone:     212-798-6100

Signature, Place, and Date of Signing:

  /s/  David Brooks     New York, NY     May 15, 2012

Report Type (Check only one.):

[ X]         13F HOLDINGS REPORT.

[  ]         13F NOTICE.

[  ]         13F COMBINATION REPORT.



                              FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:         8

Form 13F Information Table Entry Total:    129

Form 13F Information Table Value Total:    $2,999,489 (thousands)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional managers with respect to which this report is filed, other
than the manager filing this report.

No.  13F File Number            Name

1    028-12421                  Fortress Investment Group LLC
2    028-12417                  FIG Corp
3    028-12418                  Fortress Operating Entity I LP
4    028-10806                  FIG LLC
5    028-10807                  Drawbridge Global Macro Advisors LLC
6    028-11237                  Drawbridge Special Opportunities Advisors LLC
7    028-10162                  FIG Advisors LLC
8    028-13249                  Fortress Commodities Advisors LLC
9    028-13498                  Fortress Macro Advisors LLC



                                    
                                                     FORM 13F INFORMATION TABLE
                                                             VALUE  SHARES/ SH/ PUT/ INVSTMT  OTHER            VOTING AUTHORITY
NAME OF ISSUER                 TITLE OF CLASS   CUSIP     (x$1000)  PRN AMT PRN CALL DSCRETN MANAGERS         SOLE   SHARED     NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
AIRCASTLE LTD                  COM              G0129K104   143820 11750002 SH       DEFINED 1 2 3 4      11750002        0        0
AMAZON COM INC                 COM              023135106     2572    12700 SH       DEFINED 1 2 3 4 9       12700        0        0
AMAZON COM INC                 COM              023135106     2572    12700 SH  PUT  DEFINED 1 2 3 4 9       12700        0        0
AMERICAN CAP LTD               COM              02503Y103   154919 17847852 SH       DEFINED 1 2 3 4      17847852        0        0
AMERICAN CAP LTD               COM              02503Y103    15854  1826499 SH       DEFINED 1 2 3 4 6     1826499        0        0
ANGLOGOLD ASHANTI LTD          SPONSORED ADR    035128206     3852   104334 SH       DEFINED 1 2 3          104334        0        0
APOLLO GLOBAL MGMT LLC         CL A SHS         037612306      576    40347 SH       DEFINED 1 2 3 4 6       40347        0        0
APOLLO GLOBAL MGMT LLC         CL A SHS         037612306       44     3060 SH       DEFINED 1 2 3 4          3060        0        0
BAIDU INC                      SPON ADR REP A   056752108    18272   130000 SH  CALL DEFINED 1 2 3 4 9      130000        0        0
BOEING CO                      COM              097023105     3049    41000 SH       DEFINED 1 2 3 4 9       41000        0        0
BROOKDALE SR LIVING INC        COM              112463104   329356 17593826 SH       DEFINED 1 2 3 4      17593826        0        0
CAMERON INTERNATIONAL CORP     COM              13342B105     3275    62000 SH       DEFINED 1 2 3 4 9       62000        0        0
CBS CORP NEW                   CL B             124857202     5833   172000 SH       DEFINED 1 2 3 4 9      172000        0        0
CHARTER COMMUNICATIONS INC D   CL A NEW         16117M305      317     5000 SH       DEFINED 1 2 3            5000        0        0
CHEMTURA CORP                  COM NEW          163893209      187    11062 SH       DEFINED 1 2 3           11062        0        0
CITIGROUP INC                  COM NEW          172967424    22789   623500 SH       DEFINED 1 2 3 4        623500        0        0
CITIGROUP INC                  COM NEW          172967424    60000  1641600 SH       DEFINED 1 2 3 4 9     1641600        0        0
COVANTA HLDG CORP              COM              22282E102        2       98 SH       DEFINED 1 2 3              98        0        0
DANAHER CORP DEL               COM              235851102     1358    24242 SH       DEFINED 1 2 3 4         24242        0        0
DANAHER CORP DEL               COM              235851102    15636   279214 SH       DEFINED 1 2 3 4 6      279214        0        0
DEVON ENERGY CORP NEW          COM              25179M103     4651    65400 SH       DEFINED 1 2 3 4         65400        0        0
DEVON ENERGY CORP NEW          COM              25179M103     2283    32100 SH       DEFINED 1 2 3 4 9       32100        0        0
DEX ONE CORP                   COM              25212W100       83    58378 SH       DEFINED 1 2 3           58378        0        0
DIAMOND OFFSHORE DRILLING IN   COM              25271C102     3236    48475 SH       DEFINED 1 2 3 4         48475        0        0
DIAMOND OFFSHORE DRILLING IN   COM              25271C102      574     8600 SH       DEFINED 1 2 3 4 9        8600        0        0
DORCHESTER MINERALS LP         COM UNIT         25820R105      110     4200 SH       DEFINED 1 2 3            4200        0        0
DYNEGY INC DEL                 COM              26817G300        0        5 SH       DEFINED 1 2 3               5        0        0
E M C CORP MASS                COM              268648102     5139   172000 SH       DEFINED 1 2 3 4 9      172000        0        0
EATON CORP                     COM              278058102     2093    42000 SH       DEFINED 1 2 3 4 9       42000        0        0
EMBRAER S A                    SP ADR REP 4 COM 29082A107     3102    97000 SH       DEFINED 1 2 3 4 9       97000        0        0
ENSCO PLC                      SPONSORED ADR    29358Q109     1366    25800 SH       DEFINED 1 2 3 4 9       25800        0        0
ENSCO PLC                      SPONSORED ADR    29358Q109     2784    52600 SH       DEFINED 1 2 3 4         52600        0        0
FABRINET                       SHS              G3323L100     1151    65000 SH       DEFINED 1 2 3 4 9       65000        0        0
FOSTER WHEELER AG              COM              H27178104     2793   122700 SH       DEFINED 1 2 3 4        122700        0        0
FOSTER WHEELER AG              COM              H27178104     1370    60200 SH       DEFINED 1 2 3 4 9       60200        0        0
GENERAL ELECTRIC CO            COM              369604103     3011   150000 SH       DEFINED 1 2 3 4 9      150000        0        0
GENERAL GROWTH PPTYS INC NEW   COM              370023103      546    32160 SH       DEFINED 1 2 3 4         32160        0        0
GENERAL MTRS CO                COM              37045V100      347    13531 SH       DEFINED 1 2 3           13531        0        0
GENON ENERGY INC               COM              37244E107        0       28 SH       DEFINED 1 2 3              28        0        0
GLOBAL EAGLE ACQUISITION COR   UNIT 99/99/9999  37951D201      547    53937 SH       DEFINED 1 2 3 4         53937        0        0
GLOBAL EAGLE ACQUISITION COR   UNIT 99/99/9999  37951D201     6309   621592 SH       DEFINED 1 2 3 4 6      621592        0        0
GOLD FIELDS LTD NEW            SPONSORED ADR    38059T106     2807   202000 SH       DEFINED 1 2 3          202000        0        0
HALLIBURTON CO                 COM              406216101    14789   445600 SH  CALL DEFINED 1 2 3 4        445600        0        0
HALLIBURTON CO                 COM              406216101     6857   206600 SH  CALL DEFINED 1 2 3 4 9      206600        0        0
HERCULES OFFSHORE INC          COM              427093109      494   104400 SH       DEFINED 1 2 3 4        104400        0        0
HERCULES OFFSHORE INC          COM              427093109      242    51242 SH       DEFINED 1 2 3 4 9       51242        0        0
HOLLYFRONTIER CORP             COM              436106108     1466    45600 SH       DEFINED 1 2 3 4 9       45600        0        0
HOLLYFRONTIER CORP             COM              436106108     2984    92800 SH       DEFINED 1 2 3 4         92800        0        0
HOWARD HUGHES CORP             COM              44267D107      197     3081 SH       DEFINED 1 2 3 4          3081        0        0
IMAX CORP                      COM              45245E109     4563   186700 SH       DEFINED 1 2 3 4 9      186700        0        0
INGERSOLL-RAND PLC             SHS              G47791101     5045   122000 SH       DEFINED 1 2 3 4 9      122000        0        0
ISHARES TR                     MSCI EMERG MKT   464287234     5642   131400 SH       DEFINED 1 2 3 4        131400        0        0
ISHARES TR                     MSCI EMERG MKT   464287234     2770    64500 SH       DEFINED 1 2 3 4 9       64500        0        0
ISHARES TR                     RUSSELL 2000     464287655      870    10500 SH  PUT  DEFINED 1 2 3 4         10500        0        0
ISHARES TR                     RUSSELL 2000     464287655    29371   354500 SH  PUT  DEFINED 1 2 3 4 9      354500        0        0
ISTAR FINL INC                 COM              45031U101       92    12680 SH       DEFINED 1 2 3 4         12680        0        0
ISTAR FINL INC                 COM              45031U101      789   108834 SH       DEFINED 1 2 3 4 6      108834        0        0
JACOBS ENGR GROUP INC DEL      COM              469814107     1349    30400 SH       DEFINED 1 2 3 4 9       30400        0        0
JACOBS ENGR GROUP INC DEL      COM              469814107     2747    61900 SH       DEFINED 1 2 3 4         61900        0        0
KBR INC                        COM              48242W106     2805    78900 SH       DEFINED 1 2 3 4         78900        0        0
KBR INC                        COM              48242W106     1376    38700 SH       DEFINED 1 2 3 4 9       38700        0        0
KODIAK OIL & GAS CORP          COM              50015Q100     1403   140900 SH       DEFINED 1 2 3 4        140900        0        0
KODIAK OIL & GAS CORP          COM              50015Q100      688    69100 SH       DEFINED 1 2 3 4 9       69100        0        0
LAS VEGAS SANDS CORP           COM              517834107     4605   100000 SH  CALL DEFINED 1 2 3 4 9      100000        0        0
LEAP WIRELESS INTL INC         COM NEW          521863308     1746   200000 SH       DEFINED 1 2 3 4 9      200000        0        0
LEAP WIRELESS INTL INC         COM NEW          521863308     1746   200000 SH  PUT  DEFINED 1 2 3 4 9      200000        0        0
MARRIOTT INTL INC NEW          CL A             571903202     2536    67000 SH       DEFINED 1 2 3 4 9       67000        0        0
METROPCS COMMUNICATIONS INC    COM              591708102      152    16896 SH       DEFINED 1 2 3           16896        0        0
MICROSTRATEGY INC              CL A NEW         594972408      448     3200 SH       DEFINED 1 2 3 4          3200        0        0
MICROSTRATEGY INC              CL A NEW         594972408     6731    48080 SH       DEFINED 1 2 3 4 9       48080        0        0
MONSANTO CO NEW                COM              61166W101     1595    20000 SH       DEFINED 1 2 3 4 9       20000        0        0
MPG OFFICE TR INC              COM              553274101       12     5000 SH       DEFINED 1 2 3 4          5000        0        0
MPG OFFICE TR INC              COM              553274101      176    75285 SH       DEFINED 1 2 3 4 6       75285        0        0
NATIONAL OILWELL VARCO INC     COM              637071101     3815    48000 SH       DEFINED 1 2 3 4 9       48000        0        0
NATIONSTAR MTG HLDGS INC       COM              63861C109   971708 67667695 SH       DEFINED 1 2 3 4      67667695        0        0
NEWCASTLE INVT CORP            COM              65105M108     6442  1025729 SH       DEFINED 1             1025729        0        0
NEWCASTLE INVT CORP            COM              65105M108     1204   191600 SH       DEFINED 1 2 3          191600        0        0
NEWFIELD EXPL CO               COM              651290108     1977    57000 SH       DEFINED 1 2 3 4         57000        0        0
NEWFIELD EXPL CO               COM              651290108      971    28000 SH       DEFINED 1 2 3 4 9       28000        0        0
NVIDIA CORP                    COM              67066G104    13920   790000 SH  CALL DEFINED 1 2 3 4 9      790000        0        0
PENN NATL GAMING INC           COM              707569109     6783   157823 SH       DEFINED 1 2 3 4        157823        0        0
PRECISION CASTPARTS CORP       COM              740189105     3026    17500 SH       DEFINED 1 2 3 4         17500        0        0
PRECISION CASTPARTS CORP       COM              740189105     3389    19600 SH       DEFINED 1 2 3 4 9       19600        0        0
PRICELINE COM INC              COM NEW          741503403     6078    12500 SH  PUT  DEFINED 1 2 3 4 9       12500        0        0
PRIMORIS SVCS CORP             COM              74164F103      721    44923 SH       DEFINED 1 2 3 4         44923        0        0
QUALCOMM INC                   COM              747525103     5105    75000 SH       DEFINED 1 2 3 4 9       75000        0        0
RAILAMERICA INC                COM              750753402   651311 30350000 SH       DEFINED 1 2 3 4      30350000        0        0
RAYTHEON CO                    COM NEW          755111507     6070   115000 SH       DEFINED 1 2 3 4 9      115000        0        0
ROUSE PPTYS INC                COM              779287101       16     1206 SH       DEFINED 1 2 3 4          1206        0        0
SANDRIDGE ENERGY INC           COM              80007P307      515    65800 SH       DEFINED 1 2 3 4 9       65800        0        0
SANDRIDGE ENERGY INC           COM              80007P307     1051   134200 SH       DEFINED 1 2 3 4        134200        0        0
SCORPIO TANKERS INC            SHS              Y7542C106     2368   335408 SH       DEFINED 1 2 3 4        335408        0        0
SCORPIO TANKERS INC            SHS              Y7542C106     1162   164592 SH       DEFINED 1 2 3 4 9      164592        0        0
SEACUBE CONTAINER LEASING LT   SHS              G79978105   144233  8385643 SH       DEFINED 1 2 3 4       8385643        0        0
SKYWORKS SOLUTIONS INC         COM              83088M102     2419    87500 SH       DEFINED 1 2 3 4 9       87500        0        0
SONIC CORP                     COM              835451105      809   105300 SH       DEFINED 1 2 3 4        105300        0        0
SONIC CORP                     COM              835451105     3034   394950 SH       DEFINED 1 2 3 4 9      394950        0        0
SPANSION INC                   COM CL A NEW     84649R200    11708   961271 SH       DEFINED 1 2 3          961271        0        0
SPANSION INC                   COM CL A NEW     84649R200      258    21208 SH       DEFINED 1 2 3 4         21208        0        0
SPANSION INC                   COM CL A NEW     84649R200     3099   254402 SH       DEFINED 1 2 3 4 6      254402        0        0
SPX CORP                       COM              784635104     5117    66000 SH       DEFINED 1 2 3 4 9       66000        0        0
STANLEY BLACK & DECKER INC     COM              854502101     5002    65000 SH       DEFINED 1 2 3 4 9       65000        0        0
SUPERIOR ENERGY SVCS INC       COM              868157108      477    18100 SH       DEFINED 1 2 3 4 9       18100        0        0
SUPERIOR ENERGY SVCS INC       COM              868157108      973    36900 SH       DEFINED 1 2 3 4         36900        0        0
SUPERMEDIA INC                 COM              868447103        5     2004 SH       DEFINED 1 2 3            2004        0        0
TENARIS S A                    SPONSORED ADR    88031M109     1426    37300 SH       DEFINED 1 2 3 4 9       37300        0        0
TENARIS S A                    SPONSORED ADR    88031M109     2902    75900 SH       DEFINED 1 2 3 4         75900        0        0
TESORO CORP                    COM              881609101    16619   619200 SH       DEFINED 1 2 3 4        619200        0        0
TESORO CORP                    COM              881609101     8157   303900 SH       DEFINED 1 2 3 4 9      303900        0        0
TIME WARNER CABLE INC          COM              88732J207     1214    14897 SH       DEFINED 1 2 3 4         14897        0        0
TIME WARNER CABLE INC          COM              88732J207     9133   112060 SH       DEFINED 1 2 3 4 6      112060        0        0
TIMKEN CO                      COM              887389104     3942    77700 SH       DEFINED 1 2 3 4 9       77700        0        0
TOYOTA MOTOR CORP              SP ADR REP2COM   892331307     6512    75000 SH       DEFINED 1 2 3 4 9       75000        0        0
TRANSOCEAN LTD                 REG SHS          H8817H100    26114   477400 SH       DEFINED 1 2 3 4        477400        0        0
TRANSOCEAN LTD                 REG SHS          H8817H100    24254   443400 SH       DEFINED 1 2 3 4 9      443400        0        0
TYCO INTERNATIONAL LTD         SHS              H89128104     4101    73000 SH       DEFINED 1 2 3 4 9       73000        0        0
U S AIRWAYS GROUP INC          COM              90341W108     1442   190000 SH       DEFINED 1 2 3 4 9      190000        0        0
UNION PAC CORP                 COM              907818108     4009    37300 SH       DEFINED 1 2 3 4 9       37300        0        0
UNITED STATES STL CORP NEW     COM              912909108     2085    71000 SH       DEFINED 1 2 3 4 9       71000        0        0
UNITED STATES STL CORP NEW     COM              912909108    34028  1158600 SH  CALL DEFINED 1 2 3 4       1158600        0        0
UNITED STATES STL CORP NEW     COM              912909108     4420   150500 SH       DEFINED 1 2 3 4        150500        0        0
UNITED STATES STL CORP NEW     COM              912909108    15778   537200 SH  CALL DEFINED 1 2 3 4 9      537200        0        0
VALERO ENERGY CORP NEW         COM              91913Y100    15253   591900 SH       DEFINED 1 2 3 4        591900        0        0
VALERO ENERGY CORP NEW         COM              91913Y100     7383   286500 SH       DEFINED 1 2 3 4 9      286500        0        0
WABCO HLDGS INC                COM              92927K102     2026    33500 SH       DEFINED 1 2 3 4 9       33500        0        0
WEATHERFORD INTERNATIONAL LT   REG SHS          H27013103     2645   175300 SH       DEFINED 1 2 3 4        175300        0        0
WEATHERFORD INTERNATIONAL LT   REG SHS          H27013103     1298    86000 SH       DEFINED 1 2 3 4 9       86000        0        0
WESCO INTL INC                 COM              95082P105     4964    76000 SH       DEFINED 1 2 3 4 9       76000        0        0
WILLBROS GROUP INC DEL         COM              969203108      147    45350 SH       DEFINED 1 2 3 4         45350        0        0