Mutoid Man is an American metal band formed February 4, 2012 in Brooklyn, NY by vocalist/guitarist Stephen Brodsky and drummer Ben Koller. Their music is a high energy blend of progressive riffs with elements of psychedelic rock, sludge metal, and stoner metal. They released their debut EP Helium Head through Magic Bullet on November 29, 2013. Brodsky also recorded bass tracks for the EP while Nick Cageao (live sound engineer, formerly of Bröhammer) played live bass.