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.

Ozzy Osbourne’s Black Sabbath bandmate Tony Iommi is sharing his memories of the late rocker. Osbourne died at age 76 on Tuesday, July 22, following a battle with Parkinson’s disease. Just weeks before his death,

Sharon and Ozzy Osbourne created the fest in 1996 in reaction to a diss from Lollapalooza: ‘Ozzy’s not relevant.’

On Thursday, July 24, Jack Osbourne's ex wife, Lisa Stelly, shared a touching post on Instagram of Ozzy Osbourne with his grandchildren through the years after the rocker died on July 22 at 76.

Today, as we mourn Ozzy's passing, we should remember that Black Sabbath's legacy extends far beyond their game-changing sound. They also established the principle that heavy music required equally heavy visuals, and proved that album art could be as transgressive as the music itself.