Kelly Osbourne has broken her silence on dad Ozzy Osbourne's death at 76 years old. "I feel unhappy I am so sad," Kelly, 40, wrote via her Instagram Story on Thursday, July 24. "I lost the best friend I ever had." Ozzy's family confirmed his death on Tuesday, July 22. "It is with more sadness than mere words can convey that we have to report that our beloved Ozzy Osbourne has passed away this morning," they said in a statement. "He was with his family and surrounded by love. We ask everyone to respect our family privacy at this time.