Pig Destroyer is a popular grindcore band based in Virginia, USA first formed in 1997. Combining grindcore with metalcore and sludge elements at times, Pig Destroyer have pushed the boundaries of the grind genre and gained a large following. Their unique sound is notable for its absence of bass guitar on their studio albums. The band was formed in 1997 by vocalist J.R. Hayes (former vocalist Enemy Soil) in 1997, guitarist Scott Hull (Agoraphobic Nosebleed, Anal Cunt, Japanese Torture Comedy Hour, and more), and drummer John Evans.