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  • 'BACK' IN THE SADDLE  photo | Christina Aguilera

Credit: Mauceri/Abbot/INF

Published: Wednesday Feb 21, 2007 | 04:30 PM EST


After a successful European run, Christina Aguilera rides into Houston for the first stop of her Back to Basics U.S. tour on Tuesday. The pop star's sexy merry-go-round outfit was just one of ten unique costumes designed by Roberto Cavalli that she unveiled during the night's performance.

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