PHOTO GALLERY: Kristin Cavallari Has Some ‘Hills’ Beach Fun

Joined by the bikini-clad bartender Stacie, Kristin Cavallari hits the beach in Malibu for a taping of The Hills. Kristin looking sexy in a black tank and bikini bottom can be seen on the upcoming season of The Hills which premieres Tuesday, September 29 at 10 pm on MTV.