Mutoid Man are an American metalcore band whose sound engages everything from hardcore punk to rock & roll to mathy prog rock and neo-psych. The group was founded in Brooklyn in 2012 by Cave In guitarist/vocalist Stephen Brodsky and Converge drummer Ben Koller, who played in one another's projects. Soundman Nick Cageao from Brooklyn's notorious St. Vitus club was recruited as bassist for their raw debut EP, Helium Head, issued on Magic Bullet in 2013. They signed to Sargent House in 2014 and recorded their full-length debut, Bleeder. It was released in June of 2015. Mutoid Man returned in 2017 with their sophomore effort, War Moans.