Kelly Osbourne will be racing into surgery after her stint on U.S. talent show Dancing With The Stars ends - because she can no longer stand the foot pain she's been suffering for years.

Ozzy Osbourne's little girl has been smiling through the pain on the show, but she's really beginning to struggle as the contest comes to an end.

She has ruled out quitting the programme now she's come so far and is one of the four last contestants - but she'll be taking her doctor's advice and checking into the nearest hospital as soon as she stops dancing.

She explains, "I have flat feet and somewhere in the 25 years of my life, I tore the cartilage in my bunion in both feet.

"I said no (to surgery). I didn't want to have it because I believe if you start cutting things, you have a whole new set of problems and it wasn't that bad, so I deal with it.

"Basically, my doctor said, 'Told you so... You wouldn't be (like) this if you had had the surgery'. So I'm going to have to have it after the show."