“He was a dear friend and a huge trailblazer who secured his place in the pantheon of rock gods - a true legend,” wrote Elton John, who featured on the title song of Osbourne’s Ordinary Man. “He was also one of the funniest people I’ve ever met. I will miss him dearly. To Sharon and the family, I send my condolences and love.”

Kelly Osbourne is mourning the loss of her father Ozzy following his death on Tuesday, referencing lyrics from Black Sabbath’s “Changes.” Osbourne posted the brief message to her Instagram stories on Thursday afternoon.