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 .”

In the weeks and days before he died, Ozzy Osbourne shared his final moments performing a last concert with fans and sharing a very emotional moment with his daughter Kelly Osbourne. The rock legend,