Black Sabbath

Black Sabbath were an English heavy metal band formed in Birmingham in 1968 by guitarist Tony Iommi, drummer Bill Ward, bassist Geezer Butler, and vocalist Ozzy Osbourne. The band initially performed under the names Polka Tulk Blues Band and later Earth, before adopting the name Black Sabbath in 1969. They became known for lyrical themes influenced by horror and the occult, as well as for the use of down-tuned guitars. Their first three albums, "Black Sabbath" and "Paranoid" (both 1970)