Since thundering out of the lonely Iowa plains in the late '90s, the nine-piece masked metal symphony known as Slipknot have combined horror imagery, enraged vocals, intricate bass and guitar riffs, and punishing percussion, and turned it into a chart-topping success.
On the 2004 platinum album, Vol. 3: (The Subliminal Verses), the fretwork of left-handed bassist Paul Gray on hits such as Duality and Vermillion created a mood of menace before building up to the inescapable fury of agonised choruses and wailing guitar breaks.
