Last Night's Look: Hit or Miss?

Vote on this week's styles by Blake Lively, Mariah Carey and more stars! You decide – are they fashionistas or flops?

  • ASHLEY OLSEN photo | Ashley Olsen

Credit: Jordan Strauss/WireImage

Updated: Friday Jun 05, 2009 | 11:35 AM EDT

ASHLEY OLSEN

M.K.'s sister hits the same event with a totally different look, recalling '90s minimalism with her pared-down black slip dress from The Row, no jewelry and platform sandals.