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?

JESSICA STROUP

The 90210 star gets a jump-start on fall with shorts over black tights and booties topped with a tuxedo jacket and black-and-white top for the K-Swiss "Classic" Dinner at the Chateau Marmont in L.A.

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