Originally a side project for Cannibal Corpse vocalist Chris Barnes and former Obituary guitarist Allen West, Six Feet Under eventually became a full-time proposition when friction between Barnes and his other bandmates became too much to bear. Featuring ex-Death bassist Terry Butler and drummer Greg Gall in the rhythm section, Six Feet Under issued their debut album, Haunted, in 1995. Barnes subsequently quit Cannibal Corpse, and Six Feet Under issued the stopgap EP Alive and Dead in 1996 to tide fans over until the following year's full-length, Warpath. Third album Maximum Violence appeared in 1999. Graveyard Classics followed a year later and 2001's True Carnage featured guest vocals from Ice-T. Double Dead arrived in 2002, followed by Bringer of Blood in 2003, Graveyard Classics, Vol. 2 in 2004, 13 and the Decade in the Grave box in 2005, Commandment in 2007, Death Rituals in 2008, and Graveyard Classics, Vol. 3 in 2010. The band eventually went through a membership shakeup in 2011-2012, with Gall leaving to form a new project, Exitsect, 2011 touring bassist Matt DeVries leaving to join Fear Factory, and Butler leaving to join Obituary. Six Feet Under recruited drummer Kevin Talley, guitarist Rob Arnold, and bassist Jeff Hughell to fill the spots, and later in 2012 released their ninth studio album, Undead.