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 joined Black Sabbath on stage, the first time the group’s original lineup had performed together in 20 years. An icon in the heavy metal world known for shocking actions, Osbourne achieved wider recognition after the reality show “The Osbournes,” which focused on the life of his family and showed him in a softer light.