Mutoid Man is an American heavy metal band formed in 2012 in Brooklyn, New York City by Cave In vocalist/guitarist Stephen Brodsky, Converge drummer Ben Koller and bassist Nick Cageao. They have released two EPs and three studio albums to date. AllMusic described their sound as metalcore but noted that it engages not just with hardcore punk and heavy metal but also rock and roll, math rock, progressive rock, and psychedelic music. Pitchfork celebrated their debut album Bleeder for "[embracing] both numbskull hard rock and cerebral progressive metal, at a time when the two approaches have become almost mutually exclusive in heavy music."