Dehumanizer is the sixteenth studio album by British heavy metal band Black Sabbath, released in 1992. It is the first (and also, the last) album in over a decade to feature Ronnie James Dio and Vinny Appice. Initial writing and demo sessions at Rich Bitch Studios in Birmingham featured Cozy Powell and bootlegs exist. Album information Both lyrically and musically, it is considered one of Sabbath's heaviest albums. Song themes vary from a computer worshipped as a god, to televangelists, to individualism and doubts about after-life. The album was originally to be done with drummer Cozy Powell, but he was in a horse riding accident, which broke his pelvis. Dio wanted to get Simon Wright, from AC/DC and later his own band, as drummer, but Butler and Iommi rejected him. So, they called Vinny Appice to be drummer. During the sessions however, 2 unreleased songs were recorded: "The Night Life", whose riff was later used for Psychophobia on Cross Purposes; And "Bad Blood", which sounds very similar to "I" on the same album. These songs can be found, along with other demos and untitled songs on bootlegged "Complete Dehumanizer Sessions" along with the Geezer Butler Band's version of "Master of Insanity" and "Computer God", which sounds like an entirely different song. "Computer God" was the title of an unreleased song by The Geezer Butler Band, in 1986 - only the title made it to Dehumanizer. The GBB version is available as a download on Geezer Butler's website. "Master of Insani