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Dänemark| Label: | Metronome 889 947-1 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (12") |
| A | I Feel Good (Extended Version) | 5:50 |
| B1 | Katja's Secret | 7:55 |
| B2 | I Feel Good (Radio Version) | 3:56 |
| Label: | Metronome 889 947-2 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | CD (Maxi-Single) |
| 1 | I Feel Good (Extended Version) | 5:50 |
| 2 | Katja's Secret | 7:55 |
| 3 | I Feel Good (Radio Version) | 3:56 |
| Label: | Metronome 889 946-3 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | CD (Mini) |
| 1 | I Feel Good | 3:56 |
| 2 | Katja's Secret | 7:55 |
