Ozzy Osbourne, the “prince of darkness” and godfather of heavy metal, has died aged 76, just weeks after he reunited with Black Sabbath bandmates for a farewell concert in his hometown of Birmingham in England.

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 Tuesday, just weeks after his farewell show. He was 76.

Osbourne was a heavy metal pioneer as the lead singer of Black Sabbath and just played a farewell show in Birmingham, England.