List of bands (27):

Silly Goose
Sirenia
Six Feet Under
Six Foot Six
Skid Row
Skillet
Skindred
Slash f. M. Kennedy & The Conspirators
Slave Keeper
Slayer
Slimelord
Slipknot
Slow Fall
Snowblind
Sodom
Soen
Soilwork
Sokołowski
Soldiers of Rage
Sons of Apollo