| Label: | React CD REACT 121 |
| Genre: | Electronic |
| Style: | House |
| Format: | CD (Single) |
| 1 | 1-2-3-4 (Original Version) | 5:49 |
| 2 | 1-2-3-4 (Mark NRG Remix) » Remix: Mark N-R-G | 7:20 |
| 3 | 1-2-3-4 (Whitewood Mix) » Remix: Kevin White, Mrs. Wood | 6:39 |
| Label: | React 12 REACT 121 |
| Genre: | Electronic |
| Style: | Trance |
| Format: | Vinyl (12") |
| A1 | 1-2-3-4 (Original Version) | |
| A2 | 1-2-3-4 (Vincent De Moor Remix) » Remix: Vincent De Moor | |
| B1 | 1-2-3-4 (Whitewood Mix) |
| Label: | React 12 REACT X 121 |
| Genre: | Electronic |
| Style: | Techno, Electro |
| Format: | Vinyl (12") |
| A | 1-2-3-4 (Mark NRG Remix) » Remix: Mark N-R-G | |
| B | 1-2-3-4 (Usual Suspects Mix) » Remix: Usual Suspects, The |
| Label: | DanceNet DNET121-SPD |
| Genre: | Electronic |
| Style: | Trance, House |
| Format: | CD (Maxi-Single) |
| 1 | 1.2.3.4. (Radio Mix) | 3:27 |
| 2 | 1.2.3.4. (Mark NRG Remix) » Remix: Mark NRG | 7:20 |
| 3 | 1.2.3.4. (Vincent De Moor Mix) » Remix: Vincent De Moor | 6:45 |
| 4 | 1.2.3.4. (Whitewood Mix) | 6:40 |
| 5 | 1.2.3.4. (Usual Suspects Mix) » Engineer: Matthew B » Remix: Usual Suspects » Remix [Credited To]: Layo Paskin, Matthew B | 6:51 |
| 6 | 1.2.3.4. (Original Version) | 5:50 |
| Label: | React 12 REACT X 121 |
| Genre: | Electronic |
| Style: | House, Trance |
| Format: | Vinyl (12" , Promo) |
| A | 1234 (Mark NRG Remix) » Remix: Mark NRG | |
| B | 1234 (Usual Suspects Mix) » Engineer: Matthew B » Remix: Usual Suspects » Remix [Credited To]: Layo Paskin, Matthew B |
| Label: | React 12 REACT 121 |
| Genre: | Electronic |
| Style: | Trance |
| Format: | Vinyl (12" , White Label) |
| A1 | 1-2-3-4 (Original Version) | |
| A2 | 1-2-3-4 (Vincent De Moor Remix) » Remix: Vincent De Moor | |
| B1 | 1-2-3-4 (Whitewood Mix) |