À quoi je sers... Official versions Official versions

| Version | Length_ | Album | Remixed_by | Year_ |
|---|---|---|---|---|
| Single version | 4:30 | Les Mots | — | 1989 |
| Club remix | 7:50 | Dance Remixes | Laurent Boutonnat | 1989 |
| Orchestral version | 4:30 | — | Laurent Boutonnat | 1989 |
| Music video | 4:58 | Les Clips Vol. III , Music Videos I | — | 1989 |
| Live version (recorded in 1989) | 5:05 | En Concert | — | 1989 |
| Live version (recorded in 2009) | 5:07 | N°5 on Tour | — | 2009 |