Kristin Cavallari joined the rest of her new cast mates to film scenes for The Hills at Pinches Tacos in LA yesterday. Lauren's last episode airs on Sunday and Audrina Patridge told Ryan Seacrest that she's already fighting with Kristin on the show, saying "it's really pathetic and desperate what people will do when the cameras are around. . . . Oh, my God. Is this what we're going to have to deal with?" Sounds like Kristin is quick to follow through on her promise to bring entertaining conflict when she arrives on the scene.
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