Deutschland
Österreich
Schweiz
UK
USA
Norwegen
Finnland
Dänemark| Label: | Ariola 106 276-100 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | I Don't Know What It Is But I Love It | 3:40 |
| B | Mystery Man | 3:22 |
| Label: | TELDEC 6.20 313 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (12") |
| A | I Don't Know What It Is But I Love It | 5:25 |
| B1 | I Don't Know What It Is But I Love It | 3:40 |
| B2 | Mystery Man | 3:22 |
| Label: | Magnet (2) MM 9209 |
| Genre: | Rock |
| Style: | Pop Rock |
| Format: | Vinyl (12" , 33 ⅓ RPM , Maxi-Single) |
| A | I Don't Know What It Is But I Love It | 5:25 |
| B1 | I Don't Know What It Is But I Love It | 3:40 |
| B2 | Mystery Man | 3:22 |
| Label: | Magnet (2) MAG 255 |
| Genre: | Pop, Rock |
| Style: | Pop Rock |
| Format: | Vinyl (7") |
| A | I Don't Know What It Is But I Love It | 3:40 |
| B | Mystery Man | 3:22 |
| Label: | Ariola 601.215-213 |
| Genre: | Electronic, Rock |
| Style: | Pop Rock, Synth-pop |
| Format: | Vinyl (12" , Maxi-Single , 45 RPM) |
| A | I Don't Know What It Is But I Love It (Extended Version) | 5:25 |
| B1 | I Don't Know What It Is But I Love It (7" Version) | 3:40 |
| B2 | Mystery Man | 3:22 |
| Label: | Magnet (2) MAGT 255 |
| Genre: | Pop, Rock |
| Style: | Pop Rock |
| Format: | Vinyl (12") |
| A | I Don't Know What It Is But I Love It | 5:25 |
| B1 | I Don't Know What It Is But I Love It (7" Version) | |
| B2 | Mystery Man | 7:02 |
| Label: | Magnet (2) 6.14064 |
| Genre: | Rock, Pop |
| Style: | Pop Rock |
| Format: | Vinyl (7" , Single , 45 RPM) |
| A | I Don't Know What It Is (But I Love It) | 3:40 |
| B | Mystery Man | 3:22 |
| Label: | Magnet (2) MAG255 |
| Genre: | Pop |
| Style: | Vocal |
| Format: | Vinyl (7") |
| A | I Don't Know What It Is But I Love It | |
| B | Mystery Man |
| Label: | Magnet (2) MAGT 255 |
| Genre: | Pop, Rock |
| Style: | Soft Rock, Pop Rock |
| Format: | Vinyl (12" , Maxi-Single) |
| A | I Don't Know What It Is But I Love It | |
| B1 | I Don't Know What It Is But I Love It (7" Version) | |
| B2 | Mystery Man |
| Label: | Magnet (2) M 7214 |
| Genre: | Pop, Rock |
| Format: | Vinyl (7" , 45 RPM) |
| A | I Don't Know What It Is But I Love It | |
| B | Mystery Man | |
| Label: | Magnet (2) K9370 |
| Genre: | Pop |
| Style: | Vocal |
| Format: | Vinyl (7") |
| A | I Don't Know What It Is But I Love It | 3:40 |
| B | Mystery Man | 3:20 |
