The cozy couple continue their joint birthday celebration in Sin City. Plus: Sienna Miller, K-Fed and more
Credit: John Shearer/WireImage
Published: Monday Nov 13, 2006 | 05:15 PM EST
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Former rivals Ashlee Simpson and Lindsay Lohan pair up Thursday to show off their rock 'n' roll style during the Genetic Denim's one-year anniversary party at West Hollywood's Area nightclub.
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