Reality star Kelly Osbourne revealed that she is scared she will become the first person to vomit on Dancing With The Stars, as she gushed about her dance partner.

The 25-year-old celebrity is about to take to the dance-floor on the popular US reality TV series, which starts this week.

But daughter of Brit rocker Ozzy Osbourne said that she fears she will embarrass herself.

She said: “We went – me and [my partner] Louis [Van Amstel] – on Saturday to do our first run-through…

“I got on the stage and… I stood there and… [I said]: ‘I’m going to be sick.’

“Maybe I could be the first [to barf] on the show.”

Osbourne, who is engaged to sweetheart Luke Worrall, couldn’t stop gushing about her hunky, blond dance partner.

She has been practising with the 37-year-old Dutch dancer who was twice World Amateur Latin Champion.

She said: “He’s the most amazing person I’ve ever met.

“He teaches me, not only about dancing, but to be a better person. He called me out on every bad thing that I do… in a good way.”

Asked about her thoughts on facing fellow contestant – shamed former US House of Representatives Majority Leader, Republican Tom Delay, 62 – on the dance floor, Osbourne said: “I keep my views about politics and religion to myself because it’s a dirty world… Everybody is entitled to their own opinions and their own beliefs whether I agree with them or not.

“I think the dancing will speak for itself.”