Kelly Osbourne and Luke Worrall Break Up!

Singer and reality TV star Kelly Osbourne has split fom her fiance Luke Worrall after reportedly accusing him of cheating on her.

The daughter of rocker Ozzy Osbourne has called off their 16-month engagement and sent model Worrall packing after she allegedly found out he had had a fling.

According to celebrity blogger Perez Hilton, she posted a series of messages on her Facebook.com page this week accusing Worrall of having an affair.

She has since deleted all but one post, which reads: "Luke Worrall makes me sick!!!"

The split led to a flurry of sympathetic messages to Osbourne from fans on Twitter.com, prompting a reply from the heartbroken star.

She writes, "Thank you all so much for your support but the matter is private and (I) will not be commenting, enough damage has already be done!"