Ozzy Osbourne’s official cause of death has been made public. The legendary rock musician died last month at the age of 76, having spoken publicly about his health conditions, including a Parkinson’s disease diagnosis, for several years prior.

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,