Greg Hetson (born June 29, 1961) is an American guitarist. He was born in Brooklyn, New York and has lived in the Los Angeles area 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. He is known for his high energy stage antics which people have coined the term "The Hetson Leap ". He was a founding member of and also plays guitar in another supergroup, Punk Rock Karaoke and the hard core punk band G.F.P.