Ballas and Cavallari leave Dancing with the Stars rehearsals in L.A. Plus: Justin Timberlake, Jennifer Aniston, Kim & Kris and more
Updated: Thursday Sep 01, 2011 | 05:00 PM EDT
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Justin Timberlake works his musical magic at New York's Southern Hospitality restaurant, where he performed an impromptu concert for fans on Wednesday night.
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