Kelly Osbourne, daughter of rock legend Ozzy Osbourne, became engaged to Sid Wilson, a member of the band Slipknot, during Ozzy Osbourne's final performance with Black Sabbath. The proposal took place backstage at the farewell concert held in England on July 5, 2025, in the presence of Ozzy and Sharon Osbourne. The couple, who have been dating for three years, shared the news publicly on July 6, 2025, with Kelly Osbourne announcing the engagement on Instagram. The moment was captured on video and widely shared, featuring Ozzy Osbourne's humorous reaction to the proposal. The engagement ring was revealed days later by luxury jewelry brand Mouawad, which noted that its design was inspired by a celebrity close to the couple.