The fashionistas of “Monte Carlo”

Aside from the spectacular locations and the comely trio of Selena Gomez, Leighton Meester, and Katie Cassidy, the most gorgeous aspect of "Monte Carlo" is the fashion. When the ladies' trip to Paris turns out to be a little less glam than expected, they get wrapped up in misadventures that involve a princess who looks remarkably like Selena (she plays both roles.) Long story short, the girls find themselves with some seriously upgraded accommodations -- plus luggage cases filled with jewels and strapless Dior gowns! We spoke to Selena, Leighton, and Katie about how their looks define their characters and what it was like to test-drive a royal wardrobe.