Kelly Osbourne attends the Betsey Johnson Spring 2009 collection at New York Fashion Week September 9, 2008. REUTERS/Joshua Lott

Kelly Osbourne surprised everyone and brought her parents to tears as she performed the Viennese Waltz Tuesday evening at the premiere of Dancing With The Stars after transforming into a beautiful, graceful woman.

Osbourne, 24, was led to the show eager to try something more feminine. Osbourne danced with Loiuis Van Amstel.

Judge Tonioli called Osbourne the Wild child reformed!'

Osbourne was quoted as describing the experience as That was the most fun I ever had.