One heiress, one film and music star and one dress! This is a fashion frock-off!

Paris Hilton and Demi Lovato were photgraphed both wearing the same Alexander Wang dress but who do you think wore it best?

Paris wore hers first but do you think she wore it better? On the way into recording The Late Show with David Letterman show she stopped to let the paparazzi take a snap.

Miss Hilton wore the dress with a fake tan (check out the white hands!) a pretty black necklace and black skyscraper heels...

Demi wore her dress on the red carpet to the Princess Protection Programme premiere. Demi went for a natural look with a sparkly necklace, chunky bracelet and it looks like the same Louboutin heels as Paris!

So now it's up to you Scapers, all you've got to do is tell who you think wore it best!