31. Selena Gomez
It's been a huge year for Selena Gomez. The teen shot a new movie, toured with her band, and continued making headlines with boyfriend Justin Bieber. Selena also added to her family with a rescue pup named Baylor.
Selena relocated to Florida for a few weeks to shoot Spring Breakers. The project required that she shed her good-girl image and don a bikini for some scenes. Selena starred in a video for Carly Rae Jepsen's "Call Me Maybe" and a Fifty Shades of Grey parody. Selena expanded her brand further by launching her first fragrance. She was rewarded for all the hard work with a favorite female singer win at the 2012 Kids' Choice Awards.