Back in February, after blowing everyone away with her Britney Spears impression [1] on The Tonight Show Starring Jimmy Fallon, Christina Aguilera [2] stopped by to chat with Seth Meyers and treated him to another spot-on impression. Years ago when Aguilera hosted Saturday Night Live [3], she played Samantha from Sex and the City [4], and Meyers requested an encore. She complied, and guess what? She's still got it. In honor of the superstar's 25th birthday this week, take a look and compare it to the hilarious original skit [5]!