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Vote on this week's styles including Blake Lively, Ashlee Simpson-Wentz and more stars! You decide – are they fashionistas or flops?

  • PARIS HILTON photo | Paris Hilton

Credit: Sean Gallup/Getty

Updated: Friday May 22, 2009 | 11:35 AM EDT

PARIS HILTON

After spending a glamorous day by the pool, the heiress dresses up in a jeweled white DSquared gown and her signature sparkling headband for the Creative Coalition event at Cannes Film Festival.