Christina Aguilera does a spot-on impression of Britney Spears singing

Wait, is it the '90s again?

Christina Aguilera and Jimmy Fallon took turns doing musical impressions of famous singers on Monday's Tonight Show. Christina tried her hand at Cher and Shakira, during which she sounded mostly like herself, but her Britney Spears impression? Spot on.

Guess X-Tina spent a lot of 1998 listening to "Baby One More Time" — much like the rest of the world.

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