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 BIEL

After glamming it up in 3.1 Phillip Lim for her movie premiere, the actress is back to casual in an oversized plaid shirt, leggings and boots, topped off with a leather jacket, for a stroll through Manhattan.