Slipknot is an American metal band from Des Moines, Iowa. The current membership includes: Sid Wilson, Joey Jordison, Paul Gray, Chris Fehn, Jim Root, Craig Jones, Shawn Crahan, Mick Thomson, and Corey Taylor and they are one of the pioneering bands in the New Wave of American Heavy Metal. Slipknot uses a down-tuned guitar set-up (lead, rhythm, and bass guitars), two percussionists in addition to the primary drummer, and electronics (samplers and turntables). The band's sound has been described as "a threshing machine devouring a military drum corps." The band incorporates diverse vocal styles, typically involving shouted vocals, melodic singing and even rapping while the lyrics generally follow an aggressive tone. The band's musical influences include groove metal, extreme metal, industrial metal, and hip hop.   Wikipedia