Ozzy Osbourne's cause of death has been revealed, just days after the Black Sabbath star's funeral. The Black Sabbath singer, from the West Midlands, died last month, aged 76, surrounded by his wife, Sharon, and their children.

Ozzy Osbourne's cause of death has been revealed. The Black Sabbath rocker died at age 76 from a heart attack, according to his death certificate obtained by The New York Times and The Sun. The death certificate reportedly listed Osbourne's cause of death as "out of hospital cardiac arrest,