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.

Kelly Osbourne, the famous daughter of rocker Ozzy Osbourne, is speaking out after his death. Kelly, 40, posted an Instagram story with a black screen and a broken heart emoji, accompanied by the text "I feel unhappy I am so sad. I lost the best friend I ever had."

With the song’s original lyrics reflecting a breakup experienced by Black Sabbath cofounder and original drummer Bill Ward, the updated version sees Kelly Osbourne expressing love to her “daddy” and acknowledging that she’s found her “way” in the world.

Paramount+ film about singer's health issues and desire to play farewell concert will stream despite his death at age 76

Ozzy Osbourne's family, from his wife Sharon to kids Kelly and Jack Osbourne, were at times in the public eye.

The two-time Rock & Roll Hall of Fame inductee was a distant relative of Stephen Colbert and some of the people who died in the 79 AD eruption of Italy’s Mount Vesuvius.

Born John Michael Osbourne, the English musician rose to fame as the so-called Prince of Darkness with his heavy metal band, Black Sabbath, which he co-founded in 1968. The band released popular hits like “Paranoid,” “Iron Man” and “War Pigs.”