Singer Kelly Osbourne has lost a stone (6.35 kilograms) in weight - by going on a chocolate diet.

The 21-year-old, daughter of rocker Ozzy Osbourne and his music manager wife SHARON, credits living on her own in her luxury $1.8 million (GBP1 million) apartment - a birthday present from her parents - for her new slimmer figure.

She says, "I live on my own now, so I don't cook.

"If hungry I eat chocolate. That's my only diet - and I've lost a bit of weight."