Black Sabbath frontman Ozzy Osbourne died following his battle with a genetic form of Parkinson's disease, while a brain expert says the singer's lifestyle could have contributed.

On Thursday, July 24, the alt-rock musician — whose real name is Dominic Harrison — shared an Instagram post where he revealed his plans to play Black Sabbath's 1972 track "Changes" each night "for the rest of my life" following the rock icon's death on Tuesday, July 22 at age 76.

Kelly Osbourne is mourning the loss of her father Ozzy following his death on Tuesday. Osbourne posted a brief message to her Instagram stories on Thursday afternoon. “I feel unhappy I am so sad,” she wrote. “I lost the best friend I ever had.”

On July 22, 2025, famed heavy metal singer Ozzy Osbourne died at age 76. Although his family did not release a cause of death, he had been battling a range of health issues over the years, including a variant of Parkinson's disease. However, soon after his death, rumors spread that the COVID-19 vaccine caused his illness.

Osbourne died this past Tuesday, at the age of seventy-six; his family didn’t announce a cause, but he had previously disclosed that he had Parkinson’s disease. By the time of his death, Osbourne had been doubly transformed by Iommi’s good idea about “evil.

Ozzy Osbourne’s sisters are grieving the loss of their beloved brother. Jean Powell and Gillian Hemming opened up to The Mirror about their sibling, whose real name was John Michael Osbourne, and spoke about the last time they saw and talked to him.

After selling millions upon millions of albums with Black Sabbath and his solo projects as well as benefiting from Ozzfest proceeds, Osbourne was in a better place financially than he could have ever imagined back in his cow-killer days, but life remained a challenge. Instead of post-industrial decay holding him back, this time it was all him.