| Label: | Multiply Records TMULTY78 |
| Genre: | Electronic |
| Style: | House, Breakbeat |
| Format: | Vinyl (12" , 33 ⅓ RPM) |
| A | 21st Century (Original Mix) | |
| B | 21st Century (Transfer Club Mix) » Remix: Transfer |
| Label: | Multiply Records 12MULTY 78PY |
| Genre: | Electronic |
| Style: | House |
| Format: | Vinyl (12" , Promo) |
| A | 21st Century (Francois K Remix) | |
| B | 21st Century (Francois K Dub) |
| Label: | Multiply Records 12MULTY 78P |
| Genre: | Electronic |
| Style: | House |
| Format: | Vinyl (12" , Promo) |
| A | 21st Century (Original Full Length Mix) | |
| B | 21st Century (Different Gear Remix) » Remix: Different Gear |
| Label: | Multiply Records 12MULTY78PX |
| Genre: | Electronic |
| Style: | House |
| Format: | Vinyl (12" , Promo) |
| A | 21st Century (Transfer Vocal Mix) » Remix: Transfer | |
| B | 21st Century (Different Gear Dub) » Remix: Different Gear |
| Label: | Multiply Records CXMULTY78 |
| Genre: | Electronic |
| Style: | Electro |
| Format: | CD (Single) |
| 1 | 21st Century (Radio Edit) » Mixed By: Andy Cato » Producer: Andy Cato » Vocals: Rachel Foster » Written-By: Andy Cato, Rachel Foster | |
| 2 | 21st Century (Transfer Club Mix) » Producer [Additional]: Jimmy Gomez, Transfer » Remix: Transfer | |
| 3 | 21st Century (Different Gear Mix) » Producer [Additional]: G Scaletti, Quinn Whalley » Remix: G Scaletti, Quinn Whalley |
| Label: | Multiply Records PRO3817 |
| Genre: | Electronic |
| Style: | House |
| Format: | Vinyl (12" , Promo) |
| A1 | 21st Century (Radio Edit) | 7:12 |
| A2 | 21st Century (François K Remix) » Engineer: Rob Rives » Keyboards: Boyd Jarvis, James Preston » Keyboards [Additional], Drum Programming: Rob Rives » Remix, Producer [Additional]: François K | 9:02 |
| B1 | 21st Century (Transfer Vocal Mix) » Producer [Additional]: Jimmy Gomez » Remix, Producer [Additional]: Transfer | 7:35 |
| B2 | 21st Century (Different Gear Mix 1) » Remix [Credited To]: Gino Scaletti, Quinn Whalley » Remix, Producer [Additional]: Different Gear | 8:47 |
| Label: | Multiply Records 2467 80007-2 |
| Genre: | Electronic |
| Style: | Progressive House, House, Trance |
| Format: | CD (Single) |
| 1 | 21st Century (Radio Mix) | 3:35 |
| 2 | 21st Century (Original Mix) | 7:09 |
| 3 | 21st Century (Different Gear Mix 2) » Remix, Producer [Additional Production]: G Scaletti, Quinn Whalley | 8:48 |
| 4 | 21st Century (Francois K Remix) » Remix, Producer [Additional Production]: Francois K | 9:02 |
| 5 | 21st Century (Transfer Vocal Mix) » Remix, Producer [Additional Production]: Transfer | 7:36 |
| Label: | Multiply Records CDMULTY78 |
| Genre: | Electronic |
| Style: | House |
| Format: | CD (Single) |
| 1 | 21st Century (Radio Edit) | 3:33 |
| 2 | 21st Century (Francois K Remix) » Engineer, Keyboards [Additional], Drum Programming: Rob "Melon" Rives » Keyboards: Boyd Jarvis, James Preston » Remix, Producer [Additional]: Francois K | 9:01 |
| 3 | 21st Century (Original Mix) | 7:07 |
| Label: | Addiction Records ADICT116CD |
| Genre: | Electronic |
| Style: | Progressive House, House |
| Format: | CD (Maxi-Single) |
| 1 | 21st Century (Radio Edit) | 3:34 |
| 2 | 21st Century (Original Full Length Mix) | 7:09 |
| 3 | 21st Century (Transfer Club Mix) » Producer [Additional]: Jimmy Gomez » Remix, Producer [Additional]: Transfer | 7:35 |
| 4 | 21st Century (Francois K Remix) » Engineer, Keyboards [Additional], Drum Programming: Rob "Melon" Rives » Keyboards: Boyd Jarvis, James Preston » Remix, Producer [Additional]: Francois K | 8:57 |
| 5 | 21st Century (Different Gear Mix) » Remix: Different Gear » Remix, Producer [Additional]: G Scaletti, Quinn Whalley | 8:46 |
| Label: | Edel Records none |
| Genre: | Electronic |
| Style: | Progressive House, House, Trance |
| Format: | CDr (Single , Promo) |
| 1 | 21st Century (Radio Mix) | |
| 2 | 21st Century (Original Mix) | |
| 3 | 21st Century (Francois K Remix) » Remix: François K | |
| 4 | 21st Century (Transfer Club) » Remix: Transfer | |
| 5 | 21st Century (Diff. Gear Mix) » Remix: Different Gear |