Last Night's Look: Hit or Miss?

Vote on this week's styles including Sienna Miller, Nicole Richie and more stars! You decide – are they fashionistas or flops?

SIENNA MILLER

Continuing her fashionable tour, Miller balances a vintage-inspired pleated-top frock with edgy studded booties at the Army & Air Force Exchange Service-hosted premiere of G.I Joe: The Rise of Cobra.

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