premise: Brad Wilk was a drummer for a band.
hypothesis: Brad Wilk . He is best known as the drummer of the rock bands Rage Against the Machine ( 1991 -- 2000 ; 2007 -- 11 ) and Audioslave ( 2001 -- 07 ) . Wilk started his career as a drummer for Greta in 1990 , and helped co-found Rage with Tom Morello and Zack de la Rocha in August 1991 . Following that band 's breakup in October 2000 Wilk , Morello , Rage Against the Machine bassist Tim Commerford , and Soundgarden front man Chris Cornell formed the supergroup Audioslave , which broke up in 2007 . As of 2016 , he is playing in the band Prophets of Rage , with Commerford , Morello , Chuck D , B-Real and DJ Lord . Wilk has also performed drums on English metal band Black Sabbath 's final album 13 .