| Adios Ayer (Farfa's Barcelona Mix) | 7:27 | |
| Adios Ayer (Original Version) | 5:32 | |
| Adios Ayer (Zuell Remix) | 7:04 | |
| Adios Ayer (Paul Daley Remix) | 9:34 |
| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| Adios Ayer (12") | DRO EastWest S.A. | 8573895610 | Germany | 2001 | |
| Adios Ayer (5 Mixes) (CDr, Maxi, Promo) | EastWest | none | UK | 2001 | |
| Adios Ayer (12") | DRO EastWest S.A. | EW 238 | Spain | 2001 | |
| Adios Ayer (CD, Maxi) | Warner Music (Germany) | 8573-88134-2 | Germany | 2001 | |
| Adios Ayer (CD, Maxi) | DRO EastWest S.A. | EW 238CD1 | Spain | 2001 | |
| Adios Ayer (CD, Maxi) | DRO EastWest S.A. | EW 238CD2 | Spain | 2001 | |
| Adios Ayer (CD, Maxi, Promo) | DRO EastWest S.A. | PR02488 | Germany | 2001 | |
| Adios Ayer (CD, Single) | DRO EastWest S.A. | 857389647 2 | Germany | 2001 |