SELENA GOMEZ

Where you've seen her: Starring in the popular Disney series Wizards of Waverly Place — and slyly deflecting rumors of a romantic attachment to (omigod!) youngest Jonas Brother Nick.

Big in '09 because: She'll star with BFF Demi Lovato (they met years ago on the set of Barney and Friends) in the made-for-Disney movie Princess Protection Program, and also follow in Lovato's musical footsteps, releasing an album of rock-influenced pop — most likely by next summer. — Leah Greenblatt