Question: who is the youngest pro dancer on dancing with the stars?
Answer: Julianne Hough is the youngest professional dancer ever to have competed and win the overall title on the show at age 18 (season 4) with Apolo Ohno, and at age 19 (season 5) with Helio Castroneves. Willow Shields is the youngest contestant to be announced to be competing on the show, at the age of 14.