“Sad to hear Ozzy died today,” Pearl Jam’s Mike McCready, who worked with Osbourne on the singer’s 2022 album, Patient Number 9, wrote on Instagram.

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."

Famed rocker Alice Cooper shared a lengthy post to Instagram following Ozzy Osbourne 's death.