| Label: | CBS 655475 6 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | Vinyl (12") |
| A | Worlds Apart (Edit) » Written-By: P. Kingsbery | 4:42 |
| B1 | Don't Think Twice (Live) » Written-By: B. Dylan | 3:24 |
| B2 | We've Changed | 4:25 |
| Label: | CBS ARIC 2324 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | Vinyl (7" , Single Sided , Promo) |
| A | Worlds Apart |
| Label: | CBS 655808 6 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | Vinyl (12" , 45 RPM) |
| A1 | Worlds Apart (LP Version) | 6:04 |
| A2 | We've Changed | 4:25 |
| B1 | The Promise You Made | 3:45 |
| B2 | When Your Heart Is Weak | 4:39 |
| Label: | CBS 655475 7 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | Vinyl (7") |
| A | Worlds Apart (Edit) » Written-By: P. Kingsbery | 4:42 |
| B | Don't Think Twice (Live) » Written-By: B. Dylan | 3:24 |
| Label: | CBS 655808 7 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | Vinyl (7" , 45 RPM) |
| A | Worlds Apart (Edit) | 4:42 |
| B | We've Changed | 4:25 |
| Label: | CBS 655475 3 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | CD (Mini , Maxi-Single) |
| 1 | Worlds Apart (Edit) » Written-By: P. Kingsbery | 4:42 |
| 2 | Don't Think Twice (Live) » Written-By: B. Dylan | 3:24 |
| 3 | We've Changed » Written-By: A. Lacazio | 4:25 |
| Label: | CBS 655808 2 |
| Genre: | Electronic, Pop |
| Style: | Synth-pop |
| Format: | CD (Single) |
| 1 | Worlds Apart (Edit) | 4:42 |
| 2 | We've Changed | 4:25 |
| 3 | The Promise You Made | 3:54 |
| 4 | When Your Heart Is Weak | 4:39 |