Heaven and Hell

Heaven and Hell is the ninth studio album by British heavy metal band Black Sabbath, released on April 25, 1980. It is their first album featuring lead singer Ronnie James Dio and producer Martin Birch.Heaven and Hell became one of Black Sabbath's best-selling albums, revitalizing the group after original lead singer Ozzy Osbourne's departure. It was re-released in the Black Sabbath box set The Rules of Hell.Heaven and Hell is the first Black Sabbath album recorded without founding member Ozzy Osbourne, who was fired from the band and replaced by Ronnie James Dio. Geoff Nicholls of Quartz also joined—a possible replacement for bassist Geezer Butler, who had missed most of the album's writing sessions and was going through a divorce. When Butler decided to stay, Nicholls became Black Sabbath's keyboardist—a position he would hold for over 20 years (though he usually played off-stage during concerts).
Former Elf and Rainbow bassist Craig Gruber also rehearsed with the band. Gruber's involvement appears to be a point of debate: In a 1996 interview, Tony Iommi mentions that Gruber played with the band for "a bit". Gruber has stated that his contribution was much more substantial and that he only left the group once Butler decided to return.
Drummer Bill Ward stayed on through the album's completion and toured with the band through August, but drinking and other developments in his personal life eventually prevented him from completing the Black and Blue Tour, which featured Black Sabbath and Blue Öyster Cult. Ward's mid-tour replacement Vinny Appice would become an official member.