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?

RUMER WILLIS

Proving that style runs in the family, Demi's daughter shows off her flawless figure in a strapless metallic Karen Millen frock with sweetheart neckline and gladiator heels while supporting her stepdad on the Spread red carpet.