Mob Rules is the 10th studio album by English heavy metal band Black Sabbath, originally released in November 1981. It followed 1980's Heaven and Hell, and it was the second and last Black Sabbath studio album to feature lead vocalist Ronnie James Dio prior to the 1992 album Dehumanizer. The cover art is a modified version of artist Greg Hildebrandt's piece entitled Dream 1: Crucifiers from 1971, with Black Sabbath licensing it's use for the cover of Mob Rules.
