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. “I feel unhappy I am so sad,” she wrote. “I lost the best friend I ever had.”

The lyrics for “Changes” were originally written by Black Sabbath bassist Geezer Butler, and the song appeared on the group’s 1972 album “Vol. 4.” In 2003, Ozzy and Kelly released a duet version of the song as a single. The song’s original lyrics are: “I feel unhappy, I feel so sad / I’ve lost the best friend that I ever had.”

Following news of his death at 76 on Tuesday, the Osbourne family issued a statement confirming his passing. “It is with more sadness than mere words can convey that w

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