| Band | Genre |
|---|---|
| Opeth | Black/Death Metal/Hardcore |
| Origin | Black/Death Metal/Hardcore |
| Overkill | Thrash Metal |
| Ozzy Osbourne | Heavy metal |
| P.O.D. | Nu Metal |
| Pantera | Thrash Metal |
| Paradise Lost | Gothic Metal |
| Pariah | Heavy metal |
| Parkway Drive | Black/Death Metal/Hardcore |
| Paul Gilbert | Hard Rock |
| Paul McCartney | Pop Rock |
| Paul Stanley | Hard Rock |
| Pearl Jam | Grunge Rock |
| Pentagram | Heavy metal |
| Peter Criss | Rock |
| Phlebotomized | Black/Death Metal/Hardcore |
| Picture | Heavy metal |
| Pink Cream 69 | Heavy metal |
| Pink Floyd | Rock |
| Pleymo | Nu Metal |
