Metal

One for Sorrow

Metal · Hard Rock

One For The Road

Rock · Metal

One Minute Silence

Metal · Alternative

Onslaught

Metal · Heavy metal

Operation Error

Metal · Progressive

Opeth

Metal · Death metal

Overdrive

Metal · Heavy metal

Overkill

Metal · Heavy metal

Oxygen Thief

Folk · Metal

P.O.D.

Rock · Metal

Pain

Metal · Alternative

Pallbearer

Metal · American

Palm

Metal · Hardcore

Papa Roach

Rock · Metal

Paradise Lost

Metal · Death metal

Paragon

Metal · Hip Hop

Parkway Drive

Metal · Hardcore

Passenger

Metal · Melodic death metal

Paul Di'anno

Metal · Heavy metal

Peach

Rock · Metal

Penance

Metal · Doom metal

Pig Destroyer

Metal · Hardcore

Pig Iron

Rock · Metal

PISSGRAVE

Metal · Death metal

Poisonblack

Metal · Gothic metal

Power Quest

Metal · Heavy metal

Powerman 5000

Rock · Metal

Primal Fear

Metal · Heavy metal

Profane Omen

Metal · Thrash metal

Prong

Metal · Thrash metal

Pro-Pain

Metal · Hardcore

Prophecy

Metal · Death metal

Psyched

Metal

Psycroptic

Metal · Death metal

Pythia

Metal · Power metal

Queensrÿche

Metal · Hard Rock