Who, if any, was a member of more than one band, Ric Ocasek or Pepper Keenan?
Pepper Keenan Pepper J. Keenan (born May 8, 1967), is an American guitarist and vocalist, best known for his work with heavy metal bands Corrosion of Conformity and Down. He joined Corrosion of Conformity in 1989, but did not become the lead singer until the recording of "Deliverance" in 1994. In 1991 he formed Down with Phil Anselmo of Pantera, Jimmy Bower of Eyehategod, and Kirk Windstein and Todd Strange of Crowbar.
List of Black Sabbath band members Black Sabbath were an English hard rock band from Aston, Birmingham. Formed in 1968, the group originally featured vocalist Ozzy Osbourne, guitarist Tony Iommi, bassist Geezer Butler and drummer Bill Ward. The initial lineup of the band lasted until 1977, during which time they released seven successful studio albums, including UK Albums Chart top-five releases "Paranoid", "Master of Reality" and "Sabbath Bloody Sabbath". Osbourne left the group in 1977 and was replaced briefly by Dave Walker, although the founding frontman returned the following year. His return was short-lived, however, and he was replaced in 1979 by Ronnie James Dio at the suggestion of Sharon Arden, who would later marry Osbourne. Butler also briefly left in 1979, although after hearing sessions recorded by replacement Craig Gruber he returned.