Kelly Osbourne is mourning the death of her dad and rock legend Ozzy. On Thursday, the musician and daughter of the Black Sabbath frontman returned to social media for the first time since his death to share a heartbreaking statement of grief. "I feel unhappy," she wrote. "I am so sad. I lost the best friend I ever had."

Ozzy Osbourne’s sisters are grieving the loss of their beloved brother. Jean Powell and Gillian Hemming opened up to The Mirror about their sibling, whose real name was John Michael Osbourne, and spoke about the last time they saw and talked to him.