Greg Graffin is an American musician, singer, and songwriter best known as the lead vocalist of the punk rock band Bad Religion. Born on November 6, 1964, in Racine, Wisconsin, he has been a prominent figure in the punk music scene since the band's formation in 1980. Graffin is recognized for his thought-provoking lyrics that often address social and political issues. In addition to his music career, Graffin is an academic. He earned a Ph.D. in zoology from Cornell University and has taught courses on evolution and the philosophy of science. His dual interests in music and science have made him a unique voice in both fields.