Wow! A lot of you got this right, and REALLY quickly.
The girl in the picture grew up to be an actress on Disney's Wizards of Waverly Place, and made her theatrical debut in the film adaptation of Ramona and Beezus. She (and her band) have 2 gold albums certified by the RIAA, as well as 2 RIAA-certified Platinum singles. At 17, she became the youngest ever ambassador for UNICEF, and is also involved in charities that help animals in Puerto Rico, and raise awareness of abuse towards women in the Congo. She recently started her own production company, launched her own clothing line, and is coming out with her own perfume line also. Oh, by the way, she is also hated by many tweens worldwide (and my 4-year old daughter) for the sole fact that she is/was dating The Beeb.Selena Marie Gomez (born July 22, 1992)
P.S. - That's right.....she's only 19. Overachiever.
Congraulations to Tonya S. for getting the first correct answer in, 7 minutes after the original post!