Singer Ozzy Osbourne reportedly died of a heart attack when he passed away on July 22 at the age of 76.

Cardiac arrest, coronary artery disease and Parkinson’s disease with autonomic dysfunction were also listed as causes in the death certificate, according to The New York Times and The Sun .

Osbourne announced in 2020 he had been diagnosed with Parkinson's. In 2025, his wife, Sharon, said that the disease left him unable to walk. It also caused him to struggle with his speech, but didn't affect his voice.

The heavy metal star, who was nicknamed the “Prince of Darkness,” had dealing with a host of health problems leading up to his death.

He had surgery on his neck and spine after an all-terrain vehicle accident in 2003 and suffered from blood clots in his legs. Osbourne also st

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