Before he was a pioneering reality television star, he was a pioneering heavy metal singer. But Ozzy Osbourne’s music has always felt bigger than his celebrity.

Two weeks after Ozzy Osbourne died at the age of 76, his cause of death has been revealed as a heart attack. Throughout his life, he faced several health issues, including Parkinson's disease.

Ozzy Osbourne, the gloomy, demon-invoking lead singer of the pioneering band Black Sabbath who became the throaty, growling voice — and drug-and-alcohol ravaged id — of heavy metal, died ...