Tracklist
| Serious (Original Club Mix) |
| Serious (Jameson Remix) |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| LIBT12046 | Maxwell D | Serious (12") | 4 Liberty Records Ltd | LIBT12046 | UK | 2001 |
| RRL 010T | Maxwell D | Serious (12", Ltd, Cle) | Relentless Records | RRL 010T | UK | 2000 |
| LIBT12046X | Maxwell D | Serious (The Remixes) (12", Ltd, Promo) | 4 Liberty Records Ltd | LIBT12046X | UK | 2001 |
| LIBT 12046 | Maxwell D | Serious (12", Promo) | 4 Liberty Records Ltd | LIBT 12046 | UK | 2001 |
| LIBTCD046 | Maxwell D | Serious (CD, Single) | 4 Liberty Records Ltd | LIBTCD046 | UK | 2001 |
| none | Maxwell D | Serious (CDr, Single) | Not On Label | none | UK | 2001 |
