Vote on this week's styles, including Britney Spears, Selena Gomez and more stars! You decide – are they fashionistas or flops?
Credit: Brian Rasic/Startraks
Updated: Saturday Sep 17, 2011 | 06:00 AM EDT
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Showing off her fit figure, the singer kicks off the launch of her U.K. tour in London wearing a sheer-paneled green mini and short boots.
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