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Disc1
| 1 | Happy (radio version) | Legacy of Sound featuring Meja | 4:02 |
| 2 | Happy (Full Vocal Gypsy mix) | Legacy of Sound featuring Meja | 6:45 |
| 3 | Happy (Garage mix) | Legacy of Sound featuring Meja | 6:38 |
| 4 | Happy (original club mix) | Legacy of Sound featuring Meja | 7:48 |
| 5 | Happy (instrumental) | Legacy of Sound featuring Meja | 6:44 |