Kelly Osbourne says she has lost her "best friend" following the death of her father Ozzy Osbourne. The heavy metal pioneer died on Tuesday at the age of 76. He died just a few weeks after performing with Black Sabbath at a big farewell show in his hometown of Birmingham.

Kelly Osbourne has addressed the death of her father, Ozzy Osbourne, at age 76. Taking to her Instagram Stories on Thursday — just two days after saying goodbye to her dad — the host, 40, wrote, “I feel unhappy I am so sad. I lost the best friend I ever had .”

Kelly Osbourne is remembering her father, Ozzy Osbourne, with an emotional tribute that calls back to a special father-daughter moment. Two days after Ozzy died at age 76, Kelly shared lyrics from the Black Sabbath song "Changes," which she and Ozzy recorded as a duet together in 2003, to her Instagram Stories.