Slipknot is an American heavy metal band formed in Des Moines, Iowa, in 1995 by percussionist Shawn Crahan, former vocalist Anders Colsefni and bassist Paul Gray. After several lineup changes in its early years, the band settled on nine members for more than a decade: Crahan, Gray, Joey Jordison, Craig Jones, Mick Thomson, Corey Taylor, Sid Wilson, Chris Fehn, and Jim Root. Slipknot is well known for its attention-grabbing image, aggressive style of music, energetic and chaotic live shows.