Dr. Gregory Walter Graffin (born November 6, 1964 in Racine, Wisconsin), better known as Greg Graffin, is the vocalist and co-founder of the punk rock band Bad Religion. He attended El Camino Real High School. In 1980, at age 15, Graffin and a few high school classmates formed Bad Religion in Southern California's San Fernando Valley. After making a name for themselves in the Los Angeles punk scene, releasing three EPs and two full-length albums, they disbanded in 1984.

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