Ozzy Osbourne announced he's living with Parkinson's disease in an emotional interview with "Good Morning America." The 71-year-old "Prince of Darkness" opened up about his health while speaking with Robin Roberts as he sat next to his wife, Sharon Osbourne, who wept over his big reveal. "It's been terribly challenging for us all," Ozzy Osbourne told Roberts. "I did my last show New Year's Eve at The Forum. Then I had a bad fall. I had to have surgery on my neck, which screwed all my nerves."