Geezer Butler

Geezer Butler, born Terence Michael Joseph Butler on 17 July 1949 in Birmingham, England, is an English musician and songwriter. Butler is best known as the bassist and lyricist of heavy metal band Black Sabbath. He was also involved in Heaven & Hell from 2006 to 2010. Butler formed his first band, Rare Breed, with old friend John "Ozzy" Osbourne in the autumn of 1967. Separated for a time, Osbourne and Butler reunited in the blues foursome, Polka Tulk, along with guitarist Tony Iommi and drummer Bill Ward. They renamed their band Earth, but after finding a band in the small-time English circuit with the same name, soon adopted Black Sabbath in early 1969.

Ozzy Osbourne

John Michael "Ozzy" Osbourne, born December 3, 1948, is an English singer-songwriter and occasional actor, whose career has spanned over 40 years. As of December 2010, Ozzy Osbourne has sold over 100 million albums worldwide. Osbourne rose to prominence as lead vocalist of the pioneering English heavy metal band Black Sabbath, a band whose radically different, intentionally dark, doom sound spawned the heavy metal genre. In his subsequent solo career Osbourne achieved a multi-platinum status in addition to the one he had earned with Black Sabbath.