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| Label: | Wildcard 570790-2 |
| Genre: | Electronic |
| Style: | House |
| Format: | CD (Single , Enhanced) |
| 1 | Happy | 4:38 |
| 2 | High (Francois K's Vocal Remix) | 10:36 |
| 3 | Whatever Gets You Through The Day | 4:43 |
| Video | Happy |
| Label: | Polydor HAPPY2 |
| Genre: | Electronic |
| Style: | Trance, House |
| Format: | Vinyl (12" , Promo) |
| A | Happy (Ferry Corsten Remix) » Remix: Ferry Corsten | 7:51 |
| B | Happy (Manhattan Clique Vocal Mix) » Remix: Manhattan Clique | 8:23 |
| Label: | Wildcard HAPPY3 |
| Genre: | Electronic |
| Style: | House |
| Format: | 2 Vinyl (12" , Promo) |
| A | Happy (Rui Da Silva Vocal Mix) » Remix: Rui Da Silva | 7:07 |
| B | Happy (Rui Da Silva Dub Mix) » Remix: Rui Da Silva | 8:51 |
| C | Happy (Liquid People Club Mix) » Remix: Liquid People | 7:23 |
| D | Happy (Liquid People Dub Mix) » Remix: Liquid People | 7:23 |
| Label: | Wildcard 570791-2 |
| Genre: | Electronic |
| Style: | House |
| Format: | CD (Maxi-Single) |
| 1 | Happy | 4:35 |
| 2 | Happy (Rui Da Silva Mix) » Remix: Rui Da Silva | 7:07 |
| 3 | Happy (Ferry Corsten Mix) » Remix: Ferry Corsten | 7:51 |
| Label: | Wildcard 570815-2 |
| Genre: | Electronic |
| Style: | House, Trance |
| Format: | CD (Single) |
| 1 | Happy » Mastered By: Tom Coyne | 4:35 |
| 2 | Happy (Rui Da Silva Mix) » Remix [Additional], Producer [Additional], Keyboards [Additional]: Rui Da Silva | 7:07 |
| 3 | Happy (Manhattan Clique Vocal Mix) » Remix: Manhattan Clique » Remix [Credited To], Producer [Additional Production]: Chris Smith, Philip Larsen | 8:23 |
| 4 | Happy (Liquid People Club Mix) » Remix: Liquid People » Remix [Credited To], Producer [Additional Production]: C. Manchester, D. Smith | 7:23 |
| 5 | Happy (Ferry Corsten Mix) » Remix, Producer [Additional Production]: Ferry Corsten | 7:51 |
| Label: | Wildcard 570853-2 |
| Genre: | Electronic |
| Style: | House, Synth-pop |
| Format: | CD (Maxi-Single , Enhanced) |
| 1 | Happy | 4:35 |
| 2 | Happy (Rui Da Silva Mix) » Remix [Additional], Producer [Additional Production], Keyboards: Rui Da Silva | 7:07 |
| 3 | High (Francois K's Vocal Remix) » Producer: Michael Peden » Remix, Producer [Additional]: Francois K » Written-By: Tunde Baiyewu | 10:34 |
| 4 | Whatever Gets You Through The Day » Written-By: Tim Laws | 4:40 |
| Video | Happy | 3:38 |
| Label: | Wildcard HAPPY 2 |
| Genre: | Electronic |
| Style: | House |
| Format: | Vinyl (12" , 33 ⅓ RPM , White Label) |
| A | Happy (Liquid People Club Mix) | |
| B | Happy (Liquid People Dub Mix) |
| Label: | Wildcard HAPPY1 |
| Genre: | Electronic, Pop |
| Style: | House |
| Format: | CD (Single , Promo) |
| 1 | Happy (Radio Edit) | 3:37 |
| 2 | Happy (Rui Da Silva Vocal Mix) » Remix, Producer [Additional], Keyboards: Rui Da Silva | 3:37 |
| Label: | Polydor HAPPY2 |
| Genre: | Electronic |
| Style: | Trance, House |
| Format: | Vinyl (12" , White Label) |
| A | Happy (Ferry Corsten Remix) » Remix: Ferry Corsten | |
| B | Happy (Manhattan Clique Dub) » Remix: Manhattan Clique |
| Label: | Wildcard 5707904 |
| Genre: | Blues, Electronic, Funk / Soul, Jazz, Pop |
| Style: | Trance, Piano Blues, Soul |
| Format: | Cassette (Single) |
| A1 | Happy | 4:35 |
| B1 | Happy (Manhatten Clique Vocal Mix) » Remix: Manhattan Clique » Remix, Producer [Additional Production]: Chris Smith, Philip Larsen | 8:23 |
| Label: | Wildcard MAXCD 396 |
| Genre: | Electronic |
| Style: | House, Trance |
| Format: | CD (Maxi-Single) |
| 1 | Happy » Mastered By: Tom Coyne | 4:35 |
| 2 | Happy (Rui Da Silva Mix) » Management [Rui Da Silva Representation]: Graphite Media Ltd. » Remix [Additional], Producer [Additional], Keyboards [Additional], Producer [Additional], Keyboards: Rui Da Silva | 7:07 |
| 3 | Happy (Manhattan Clique Vocal Mix) » Remix: Manhattan Clique » Remix, Producer [Additional]: Chris Smith, Philip Larsen | 8:23 |
| 4 | Happy (Liquid People Club Mix) » Remix: Liquid People » Remix, Producer [Additional]: C. Manchester, D. Smith | 7:23 |
| 5 | Happy (Ferry Corsten Mix) » Remix, Producer [Additional]: Ferry Corsten | 7:51 |
| Label: | Wildcard HAPPY3-1 |
| Genre: | Electronic |
| Style: | House |
| Format: | Vinyl (12" , Promo) |
| A | Happy (Rui Da Silva Vocal Mix) » Remix: Rui Da Silva | 7:07 |
| B | Happy (Rui Da Silva Dub Mix) » Remix: Rui Da Silva | 8:51 |