Black Sabbath’s farewell concert, which included hits like “Iron Man” and “War Pigs,” comes as the 76-year-old rocker is living with Parkinson’s disease Ozzy Osbourne is officially retired. The aging rocker, who was diagnosed with Parkinson’s disease in 2019, performed his final concert with Black Sabbath Saturday, where the band broke out their greatest hits and were joined by guests Metallica, Aerosmith’s Steven Tyler and more. The performance took place at Villa Park, and Osbourne sang while