Kevin Michael "GG" Allin (born Jesus Christ Allin; August 29, 1956 – June 28, 1993) was an American punk rock singer. He made music with many bands. He was known for his stage antics that often featured transgressive acts. This included coprophagia, self-mutilation, and attacking audience members. He was called "the most spectacular degenerate in rock & roll history" by G4TV's "That's Tough".