Kelly Osbourne smiled through the pain during a recent taping of U.S. chat show Chelsea Lately when she refused to wear any support for her fractured foot.

The fashion-conscious star refused to walk out wearing a cast, so instead she strapped on a favourite pair of high-heeled shoes and was carried to the guest's chair during a commercial break.

Osbourne told host Chelsea Handler, "I'm in too (much) pain to put the RoboCop boot on, so I'm placing the shoe on my foot and just sitting here like it's normal but it really f**king hurts to walk."

The Tv personality picked up the injury on the treadmill.

She added, "I was too busy staring at my reflection. (I was like), 'You're running, you look really good...' and then I fell off and hit the mirror in the back."