Black Sabbath Black Sabbath Black Sabbath were an English rock band, formed in Birmingham in 1968, by guitarist and main songwriter Tony Iommi, bassist and main lyricist Geezer Butler, drummer Bill Ward, and singer Ozzy Osbourne. Black Sabbath are often cited as pioneers of heavy metal music. The band helped define the genre with releases such as "Black Sabbath" (1970), "Paranoid" (1970), and "Master of Reality" (1971). The band had multiple line-up changes, with Iommi being the only constant member throughout its history. Formed in 1968 as the Polka Tulk Blues Band, a blues rock band, the group went through line up
Earth (British band) by David Bolitho: Earth (British band) Earth, initially credited as The Earth, was a British psychedelic music band active from 1968 to 1969. The band is mainly significant for having caused the band Earth formed by Ozzy Osbourne and Tony Iommi to change the name of their hard-edged blues band Earth to Black Sabbath in order to avoid confusion. The line-up included The Misunderstood's Glenn Campbell on steel guitar and Robin Parnell on bass guitar. The band released two singles and recorded radio sessions for the BBC. After the second single Campbell disbanded Earth and formed Juicy Lucy. The band's