Slipknot ( SLIP-not) is an American heavy metal band formed in Des Moines, Iowa, in 1995 by percussionist Shawn Crahan, drummer Joey Jordison and bassist Paul Gray. After several lineup changes in its early years, the band settled on nine members for more than a decade: Crahan, Jordison, Gray, Craig Jones, Mick Thomson, Corey Taylor, Sid Wilson, ...