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

Kelly Osbourne Honors Late Dad Ozzy With Sweet Throwback Video originally appeared on Parade. Kelly Osbourne is paying tribute to her father, Ozzy Osbourne, only a few days after his death at the age of 76. On Monday, July 28, Kelly posted a throwback video to her Instagram Story that showed her as a teen sitting on the lap of her late father.

Kelly Osbourne has shared a sweet video of herself sat on her dad's lap as she quotes lyrics from their duet Changes, in a tribute to the legendary Black Sabbath frontman

It was a fitting farewell for Osbourne, who gained mainstream fame with the band on the back of hits like “Iron Man” and “Paranoid” before going solo in 1980 with the chart-topper “Crazy Train.” The year prior, he was ousted from the very band he’d co-founded amid a years-long struggle with substance abuse.

Kelly Osbourne shares touching moment with her father in which they can be seen singing and dancing together, as she continues to mourn his death.

Pantera have canceled multiple upcoming shows and postponed others in the wake of Ozzy Osbourne's death, paying tribute to the metal legend who they called a "mentor" and "brother." In a statement posted to Instagram,

Marcus Jordan had a sobering realization following the deaths of Hulk Hogan and Ozzy Osbourne this week -- one that encouraged him to reconnect with his family ... and nearly pick up the bottle after months of sobriety.