Osbourne was very active on social media leading up to his death, giving fans an inside look at his final performance and news on his future plans.

Kelly Osbourne is reminiscing on her close bond with dad Ozzy Osbourne after his death. In an Instagram Story uploaded Monday Kelly, 40, shared a throwback interview clip where she joked, "I know I can't say f***.

Kelly broke her silence on her father's death Thursday, telling her followers she "lost the best friend [she's] ever had."