Greg Hetson (born June 29, 1961) is an American guitarist. He was born in Brooklyn, New York and has lived in Los Angeles since he was 2 years old. Active since 1979, Hetson is best known as the guitarist for the influential hardcore punk bands Redd Kross, Circle Jerks and Bad Religion. While Hetson declares Bad Religion as his main occupation, he has alternated between both Bad Religion and The Circle Jerks since 1994. He was a founding member of Black President and also plays guitar in another supergroup, Punk Rock Karaoke and the hard core punk band G.F.P.