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  • KRISTIN CAVALLARI photo | Kristin Cavallari

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Updated: Friday Jun 26, 2009 | 12:00 PM EDT

KRISTIN CAVALLARI

She might be the newest member of The Hills, but she's already up for the show's style quotient in a hot pink one-shoulder frock, Le Vian jewels and gladiator heels at the Transformers: Revenge of the Fallen premiere in Westwood, Calif.