Ozzy Osbourne, the iconic lead singer of Black Sabbath who also fronted the classic MTV reality show The Osbournes, has died at the age of 76 following a battle with Parkinson’s disease. “It is with more sadness than mere words can convey that we have to report that our beloved Ozzy Osbourne has passed away

Ozzy Osbourne was a heavy metal icon. He was also an unlikely reality TV pioneer on "The Osbournes," with his wife Sharon and kids Kelly and Jack.

With the death of Ozzy Osbourne, former MTV boss Van Toffler remembers the success of "The Osbournes," and how it impacted both MTV and reality TV.

Ozzy Osbourne may have sold millions of albums, bitten the head off a bat, and helped invent heavy metal, but nothing rattled him quite like reality TV. In the wake of his death at 76, fans are revisiting every chapter of Ozzy’s life,

My heartfelt sympathies go out to Sharon, Jack, Kelly, the rest of his family and everybody that's worked hard along the way."

Transformed by 'The Osbournes' from bird-biting Prince of Darkness into one of TV's quintessential bumbling dads, Osbourne helped usher in a wave of image makeovers with unexpectedly lasting ripples.

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