In the late 1960s, Osbourne and Butler first collaborated in the band Rare Breed, and they later joined Iommi and Ward, who had previously played together in Mythology, to form Polka Tulk Blues. They eventually renamed the band Earth, and changed it once more to Black Sabbath.

Osbourne is known both as a pioneer of heavy metal and as a goofy and lovable father on a hit reality TV show of the early 2000s. He was born John Michael Osbourne on Dec. 3, 1948. 93.3 WMMR DJ Jacky BamBam said, "He started it all … Ozzy was your Prince of Darkness."

With tears in his makeup-shadowed eyes, Osbourne, the ailing and retiring frontman for Black Sabbath, raged against the twilight of the metal gods.