Selena Gomez had one sweet 20th birthday on Sunday! The singer/actress began her afternoon by attending the Teen Choice Awards 2012 at the Gibson Ampitheater in Universal City, California, where she hit the red carpet in a hot pink Dsquared 2 halter dress, Herve Leger strappy sandals, and some tasteful diamonds. Gomez, who sat in the front row with her pop star boyfriend Justin Bieber, also made an appearance onstage.
The brunette beauty picked up a surfboard when her group Selena Gomez & the Scene won Choice Music Group. After Gomez was presented with the award from "The Vampire Diaries" actress Nina Dobrev and "Think Like a Man" actor Kevin Hart, she was presented with cupcakes from the Beverly Hills-based Sprinkles bakery and serenaded by the audience in a rendition of "Happy Birthday to You." At one point, the camera focused on Gomez's gal pal, Taylor Swift, as she joined in on the song