| Band | Genre |
|---|---|
| John Lennon | Pop Rock |
| John Norum | Hard Rock |
| John Petrucci | Instrumental Rock |
| Jon Lord | Rock |
| Journey | Rock |
| Joy Division | Punk Rock |
| Judas Priest | Heavy metal |
| Karma to Burn | Rock |
| Kiko Loureiro | Progressive Metal |
| Killer (Belgium) | Heavy metal |
| King Crimson | Rock |
| King Diamond | Heavy metal |
| Kingdom Come | Hard Rock |
| Kiss | Hard Rock |
| Kix | Hard Rock |
| Korn | Nu Metal |
| Korpiklaani | Folk Rock |
| Kreator | Thrash Metal |
| Krisiun | Black/Death Metal/Hardcore |
| Krokus | Hard Rock |
