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 spoke out for the first time since Ozzy Osbourne's death on Thursday, July 24. The rocker and father of six died on Tuesday, July 22, at 76 years old. Kelly shared a poignant line from the Black Sabbath song "Changes,

In 2002, Ozzy and wife Sharon made their family debut on the MTV reality series The Osbournes, featuring Kelly and son Jack. The show won the Emmy for Outstanding Non-Fiction Program (Reality) in 2002 and was nominated again the following year. Its final episode aired on March 21, 2005, before launching several offshoots over the years.