Tony Iommi is the lone member of Black Sabbath to appear on all 19 of the studio albums. In fact, 1986's Seventh Star was initially meant to be an Iommi solo record before last minute pressure from their label led it to being released under the Black Sabbath moniker.

With a pioneering sound that essentially created the genre of heavy metal, it’s no overstatement to call Black Sabbath one of the most important rock bands of all time. In 1967, bassist and lyricist Geezer Butler formed Rare Breed,

Ozzy Osbourne will reunite with all of the original members of Black Sabbath for the first time in 20 years, in a gig that will be his last and that’s being billed as the “greatest” heavy metal show e