This band American heavy metal band founded in September 1995 included what former bassist for the band Will Haven?
Slipknot (band): Slipknot is an American heavy metal band from Des Moines, Iowa. Slipknot (band):  The band was founded in September 1995 by percussionist Shawn Crahan and drummer Joey Jordison. Slipknot (band):  After several lineup changes in its early years, the band settled on nine members for more than a decade: Corey Taylor, Mick Thomson, Jim Root, Paul Gray, Craig Jones, Sid Wilson, Shawn Crahan, Chris Fehn and Joey Jordison. Chris Fehn: Christopher Michael "Chris" Fehn (born February 24, 1973), or known by his number #3, is an American musician, best known as one of the two custom percussionists of the Grammy Award-winning heavy metal band Slipknot and is the former bassist for the band Will Haven.
Christopher Michael "Chris" Fehn