Last Night's Look: Hit or Miss?

Vote on this week's styles including Taylor Swift, Heidi Klum and more stars! You decide – are they fashionistas or flops?

JANUARY JONES

The Mad Men star's '60s shifts are nowhere in sight at the GQ Men of the Year party in L.A. Instead she goes with a modern blue and white strapless Gucci dress, platforms and statement necklace.