Julianne Hough
The professional dancer and actor revealed in 2008 that she was sticking with her choice to remain a virgin until marriage. "I want to be with that special person," she said. "I think [the choice] to have sex before marriage is an individual one, but if you're just with one person, it's only for one good reason, and [waiting to have sex] will strengthen that relationship,” Hough added. “I'm not trying to preach consequences here, but I think when you say no, down the line it will be a better decision."