Jack and Ozzy Osbourne are the "peacekeepers" in the Osbourne family.

The rocker's family rose to fame in the early part of the last decade starring in their own reality series, 'The Osbournes', and while his wife Sharon and daughter Kelly are known for their acid tongues, son Jack says the men of the family always restore calm.

He said: "Absolutely we're the peacekeepers. The Osbourne women are very strong, opinionated and determine, so there has to be some balance in the Madness!"

Kelly recently got into trouble for calling pop singer Christina Aguilera fat, but Jack says her comments hardly upset him.

He added to Britain's OK! magazine: "That's the last thing that would embarrass me, I thought that was absolutely hilarious."

As well as Christina, Kelly had a number of very public fall outs with her ex-fiance, model LUKE WORRALL, since they split.

In a recent rant she wrote: "Luke Worrall is the biggest piece of s**t. 'He is the worst thing that ever happened to me. I have never felt heartbreak like this in my life. I only came home for Xmas to see him meanwhile he has been f***ing hundreds of girls as well as men behind my back. (sic)"

Band manager Sharon had endured a number of rock feuds with acts including Smashing Pumpkins and Iron Maiden, but her most-publicised spat was a fallout with Dannii Minogue, who she sat alongside on the panel of UK TV talent show 'The X Factor' in 2007.

She later said of the star: "I couldn't stand her. She wasn't so much a dim bulb, as a bulb in a power cut. F***ing useless."