Last Night's Look: Love It or Leave It?Olivia Palermo's feathers, Dianna Agron's edgy ensemble, Katie Holmes's skintight mini and more star style on the red carpet. Check them out, then vote – fashion-forward or fashion fail?

KIERNAN SHIPKA

Kiernan goes toe-to-toe with the grown-ups at the launch of Choo.08 in L.A., expertly matching the yellow and gray stripes on her Preen dress to the straps on her poiny-toe heels.