Britney Spears made her red carpet return for the Southern Style St. Bernard Project Event in Beverly Hills on Wednesday. Wearing a figure-hugging Herve Leger by Max Azria dress, the "Till The World Ends" singer, 29, was joined by her agent beau of two years, Jason Trawick.

PHOTOS: Britney's bikini body over the years

The outing marks the first time that Spears and Trawick have stepped out as a couple on the red carpet. "We have such a great time together!" Spears recently told Us Weekly of Trawick, 39. "He makes me laugh, and we are so comfortable being ourselves."

VIDEO: See Britney's first live performance in two years

Guests including Selena Gomez, Kellan Lutz, Shenae Grimes, Hilary Duff and Mike Comrie, Kim Kardashian and Kelly Osbourne all sipped on Spears' sweet tea; the singer's father, Jamie, catered the charity event.

PHOTOS: Britney's adorable little boys

The St. Bernard Project helps rebuild the lives and homes of Hurricane Katrina survivors; To support Spears' cause, text BRITNEY to UNITED(864833) to donate $10 to the St. Bernard Project.

Get more Us! Follow us on Twitter, Friend us on Facebook, Subscribe to Us Weekly