Style Radar: Rompers To Gowns -- Fashion Winners & Losers!

Katherine Heigl and Sienna Miller are both on their fashionable world tours promoting their films, the Ugly Truth and G.I. Joe: The Rise of Cobra respectively. And numerous continents later, the fashionable leading ladies are still "wowing" us.

Heigl stunned in an emerald green Naeem Khan number in London and Sienna Miller stepped out sophisticated-yet-chic in a Stella McCartney LBD at the New York Stock Exchange.

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In this Gallery: Katherine Heigl, Sienna Miller, Ashlee Simpson-Wentz, Vanessa Hudgens, Ciara, Rihanna

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• TAGS
• Style
• Ashlee Simpson-Wentz
• Ciara
• fashion
• Katherine Heigl
• rihanna
• Sienna Miller
• Style Radar
• Vanessa Hudgens