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OTRC: Kelly Osbourne to have surgery on feet, says 'Dancing With the Stars' aggravated ailments

Kelly Osbourne speaks to OnTheRedcarpet.com after 'Dancing With the Stars' contestants' peformances on Nov. 1, 2010.

Kelly Osbourne is set to undergo surgery on both of her feet, saying her stint on "Dancing With the Stars" aggravated her existing foot problems.

Osbourne, who rose to fame several years ago when she starred with her parents Sharon and Ozzy in the reality series "The Osbournes", was a contestant on the ABC ballroom dancing contest show in 2009. She credited her experience on the program for her 50 pound weight loss, which made her slim down to a size 2.

"They have to break bones in my feet and reset them. I've put it off because I've not been ready to not walk for a month," Osbourne told E! News about her upcoming surgery, adding that "Dancing With the Stars" "made it worse" and "kicked it up about 10 years.

Following her weight loss, Osbourne showed off her new bikini body on the cover of Shape magazine's December 2010 issue.