Input (grade 12): Black Sabbath are an English rock band, formed in Birmingham in 1968 by Ozzy Osbourne (lead vocals), Tony Iommi (guitar), Geezer Butler (bass), and Bill Ward (drums and percussion).
Output (grade 11): The original line up was Ozzy Osbourne (vocals), Tony Iommi (guitar), Terence "Geezer" Butler (bass), and Bill Ward (drums) History Black Sabbath formed in 1968.