| Label: | 4 Liberty Records Ltd LIBT12046 |
| Genre: | Electronic |
| Style: | UK Garage |
| Format: | Vinyl (12") |
| A | Serious (Original Club Mix) | |
| B | Serious (Jameson Remix) » Remix: Jameson |
| Label: | Relentless Records (2) RRL 010T |
| Genre: | Electronic |
| Style: | UK Garage |
| Format: | Vinyl (12" , Limited Edition) |
| A | Serious (Street Vocal Edit) | |
| B | Serious (Dub) |
| Label: | 4 Liberty Records Ltd LIBT 12046 |
| Genre: | Electronic |
| Style: | UK Garage |
| Format: | Vinyl (12" , Promo) |
| A | Serious (Street Vocal Mix) | |
| B | Serious (Jameson Remix) » Remix: Jameson |
| Label: | 4 Liberty Records Ltd LIBT12046X |
| Genre: | Electronic |
| Style: | UK Garage |
| Format: | Vinyl (12" , Promo , Limited Edition) |
| A | Serious (Blessed Love's West Coast Remix) » Remix: Blessed Love | |
| B | Serious (Marco Street Remix) » Remix: Marco Street |
| Label: | 4 Liberty Records Ltd LIBTCD046 |
| Genre: | Electronic |
| Style: | UK Garage |
| Format: | CD (Single) |
| 1 | Serious | |
| 2 | Serious (Jameson Remix) » Remix: Jameson | |
| 3 | Serious (Original Club Mix) |