From Christina Aguilera to Xtina Pt. 2: Christina Aguilera's "Dirrty" Years
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Christina Aguilera Kisses Madonna After Britney Spears at the 2003 MTV Video Music Awards on August 28, 2003
It's easy to forget that Xtina also shared an on-stage smooch with the Queen of Pop. But it's not easy to forget who can sing circles around both her and Brit Brit!
