Last Night's Look: Hit or Miss?

Vote on this week's styles including Diane, Vanessa, Katie and more stars! You decide – are they fashionistas or flops?

AMY ADAMS

The Oscar nominee strikes fashion gold in a navy Stella McCartney dress with subtly sparkling embellishments, Hellmuth hoop earrings, black pumps and sexy scarlet waves at a Hollywood event for her film The Fighter.