Jack, the youngest of the Osbourne clan, is set to make a documentary about his dad Ozzy, in a bid to dispel the negative image the public have of him.

“My dad’s not an idiot – he’s nothing short of a genius,” Jack told Rolling Stone. “He does have huge flaws, and we’re trying to really paint an honest picture of that.

“I think The Osbournes, to a degree, tarnished the public’s perception of my dad as a bit of a senile, funny, bumbling guy.

“My dad can be that guy, but it’s not him. I think that almost discredited who he is as an artist.”