Tomahawk is an experimental alternative metal/alternative rock supergroup from the United States. They formed in 2000 when Fantômas, Mr. Bungle and Faith No More singer Mike Patton and The Jesus Lizard guitar player Duane Denison started swapping tapes with the intention of collaborating. Duane Denison then recruited ex-Helmet drummer John Stanier (also playing with Battles), while Mike Patton brought Melvins/Cows bass player Kevin Rutmanis into the fold. Rutmanis left the band after the 2nd album (Mit Gas) and was replaced by Trevor Dunn (Fantômas, Mr; Bungle) for the 4th album (Oddfellows).