The claim about his health and the COVID-19 vaccine is consistent with a common conspiracy theory that spread online during the pandemic, falsely attributing numerous famous peoples' deaths to the vaccine. We have previously fact-checked such claims about Betty White, Lisa Loring and even Russian opposition leader Alexei Navalny.

Kelly Osbourne, the famous daughter of rocker Ozzy Osbourne, is speaking out after his death. Kelly, 40, posted an Instagram story with a black screen and a broken heart emoji, accompanied by the text "I feel unhappy I am so sad. I lost the best friend I ever had."

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, using the opening line to “Changes.” “I feel unhappy,” she wrote. “I am so sad. I lost the best friend I ever had.”

Fox News senior medical analyst Dr. Marc Siegel takes a look at Ozzy Osbourne's battle with Parkinson's disease, plus the dangers of cannabis gummies on 'America Reports.'

Pantera is rescheduling its Monday night concert at Saratoga Springs Performing Center to Sept. 9 to mourn the death of the rock legend, who on Tuesday died at the age of 76. In a Facebook post on Friday, the band wrote that their team needs "time and space" to grieve.

Steven Tyler and Ozzy Osbourne played together just weeks ago at a farewell concert for Osbourne in Birmingham, England.

Ozzy Osbourne’s final months were filmed for a new documentary, turning his death into a posthumous spectacle.

Alice Cooper Reflects on Ozzy Osbourne's Different ‘Personas’ for His Fans and His Loved Ones originally appeared on Parade. Famed rocker Alice Cooper shared a lengthy post to Instagram following Ozzy Osbourne 's death. In the post, he reflects on the Godfather of Heavy Metal's impact and relationships.