Yes, Black Sabbath ( Tony Iommi, Geezer Butler and Bill Ward) fired Osbourne in 1979 over his substance abuse and an overall disinterest in doing anything with the band. They replace Ozzy with Ronnie James Dio, ushering in the "Heaven and Hell" era—and the longstanding rumor that Ozzy held a grudge against Dio. But is that true?

Fans around the world have been mourning Black Sabbath lead singer Ozzy Osbourne as a musical legend - but for many, the 76-year-old's passing also marked the loss of an early 2000s reality television...

Those early Sabbath records couldn’t help but change the course of music history.