Tracks
| # | Title | Sung by | |
|---|---|---|---|
| 1 | 21 Seconds (original So Solid version) | So Solid Crew | 5:05 |
| 2 | 21 Seconds (12″ version) | So Solid Crew | 4:54 |
| 3 | 21 Seconds (DJ Swiss & Dan Da Man remix vocal) | So Solid Crew | 4:54 |
| 4 | 21 Seconds (CDROM video) | So Solid Crew | 5:05 |
Source: MusicBrainz release group 250a9fbb-7643-3c91-aeb6-446bfe11a2bb (CC0). Cover: Cover Art Archive.