Throwback! Teen Choice's Standout Stars' Old Shots

Ahead of Sunday's awards show, see how nominees Miley Cyrus, Selena Gomez, Justin Bieber and more have grown


Then: Like Cyrus and Gomez, 16-year-old Lovato first struck a chord with fans thanks to her girl-next-door demeanor and singing chops, assets that made her the lovable leading lady of the 2008 Disney Channel movie Camp Rock.
Now: Though her sudden success led Lovato to briefly check into a treatment center in 2010, the star, now 20, bounced back better than ever, releasing her third album in early 2011 and joining The X Factor in 2012, where she continues to serve as a judge.