The chart-topping singer hits the stage for a good cause in Las Vegas. Plus: Usher, Katie Holmes, Lauren Conrad and more
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Published: Friday Sep 19, 2008 | 05:10 PM EDT
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It's a fabulous ladies' night out as Sarah Jessica Parker reteams with Sex and the City costars Kim Cattrall and Cynthia Nixon at a bash at the New York Public Library to celebrate their film's DVD release on Thursday.
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