36 Crazyfists
metal, metalcore, nu metal
38 Special
classic rock, southern rock
3OH!3
crunk, electronic, electronica, rap
3Pecados
experimental rock, indie pop, indie rock, noise rock
3rd Force
ambient, chillout, jazz, smooth jazz
3Teeth
electro-industrial, electronic, industrial metal, industrial rock
4
ambient, black metal, electronica, house
4 Out of 5 Doctors
new wave, power pop, rock
4 Strings
dance, electronic, techno, trance
40 Below Summer
alternative metal, metal, nu metal, rock
45 Grave
death rock, deathrock, horror punk
48th St. Collective
bossa nova, chillout, jazz
4Arm
groove metal, nu metal, thrash metal
4hero
chillout, downtempo, drum and bass, electronic, electronica
