Back in April, Katy Perry
arrived at the ASCAP POP Music Awards in Hollywood looking boho-chic in a beaded and embroidered Temperley London gown. Just a few weeks ago, Ashlee Simpson
wowed in the same embellished, off-white dress at HBO's Annual Emmy Awards Post Awards Reception in Hollywood. While Katy was casual, with an off-the-shoulder-strap, purple locks and girly hair barrettes, Ashlee added a bit of sophisticated with some simple, yet elegant, accessories.
So, who do you think wore the Temperley London gown better -- Katy or Ashlee? Cast your vote in our poll and click to see the next Who Wore It Better face-off below!