| Happiness (David Morales Radio Edit) | 3:20 | |
| Happiness (Radio Edit) | 2:54 | |
| Happiness (Original Mix) | 6:56 | |
| Happiness (David Morales Remix) | 7:34 | |
| Happiness (David Morales Dub Mix) | 7:27 | |
| Happiness (Jeremy B Remix) | 8:11 |
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Happiness (CD, Maxi) | Spinnin' Records | SP 008 CDM | Netherlands | 2000 | |
| Happiness (My Vision Is Clear) (12") | Azuli Records | AZNY 113 | UK | 2000 | |
| Happiness (My Vision Is Clear) (12") | Azuli Records | AZNY 113R | UK | 2000 | |
| Happiness (Original Mixes) (12", W/Lbl) | Ocean Trax | OCN 025 | Italy | 2000 | |
| Happiness (12") | Blanco Y Negro (2) | MX 266 | Spain | 2000 | |
| Happiness (12") | Spinnin' Records | SP 008 | Netherlands | 2000 | |
| Happiness (12") | Ocean Trax | OCN 027 | Italy | 2000 | |
| Happiness (12") | Vendetta Records | VENMX 266M | Spain | 2000 | |
| Happiness (12", S/Sided, Promo) | Azuli Records | AZBINIPROMO | UK | 2000 | |
| Happiness (2x12", TP, Promo) | Azuli Records, | AZNY113, AZNY113R | UK | 2000 | |
| Happiness (CD, Maxi) | Azuli Records | AZNY CDX 113 | UK | 2000 | |
| Happiness (CD, Maxi) | Mega Dance | 0067545MEG | Sweden | 2000 | |
| Happiness (X Men Remix) (12", S/Sided, W/Lbl) | Azuli Records | 2STEPHAPPY 01 | UK | 2001 |
referencing Happiness (X Men Remix), 12", S/Sided, W/Lbl, 2STEPHAPPY 01
referencing Happiness (My Vision Is Clear), 12", AZNY 113