Ozzy Osbourne died from a heart attack and suffered from Parkinson’s and coronary artery disease, according to a death certificate filed in London and obtained by the New York Times.

Ozzy Osbourne — the heavy metal rock star-turned-reality television pioneer — died of a heart attack, his death certificate revealed, according to multiple reports

Ozzy Osbourne died of a heart attack, his death certificate has revealed. The Black Sabbath front man, who was 76, died last month, two weeks after playing his farewell concert at Villa Park in his home city of Birmingham.