Ashley Greene - Teen Choice Awards with Kellan Lutz!

Kellan Lutz poses in the press room with his adorable younger brother Tanner during the 2011 Teen Choice Awards on Sunday (August 7) at the Gibson Amphitheatre in Universal City, Calif.

The 26-year-old actor and his Twilight co-star Ashley Greene hit the stage together and introduced Selena Gomez and the Scene’s performance of “Love You Like A Love Song.”

The day before, Kellan was in Chicago where he hit the Belve Music Lounge at the W Chicago City Center during Lollapalooza.

FYI: Ashley wore a Givenchy dress and shoes, and Neil Lane jewels. Kellan is wearing David Yurman accessories.

10+ pictures inside of Ashley Greene and Kellan Lutz at the 2011 Teen Choice Awards…