Last Night's Look: Hit or Miss?

Vote on this week's styles including Katy Perry, Fergie and more stars! You decide – are they fashionistas or flops?

  • JENNIFER ANISTON photo | Jennifer Aniston

Credit: Victor Chavez/WireImage

Updated: Saturday Mar 12, 2011 | 06:00 AM EST

JENNIFER ANISTON

From her glittering one-shoulder Valentino haute couture frock to her matching Tabitha Simmons sandals, the perfumer oozes goddess grace to introduce her signature fragrance to Mexico City.