Last Night's Look: Hit or Miss?

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

JESSICA ALBA

The actress goes for a preppy summer look in her crisp white button-down and pleated trouser shorts accessorized with chunky platforms, a blue Ferragamo bag and a statement headband for a day out in Beverly Hills.

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