Back in February, after blowing everyone away with her Britney Spears impression on The Tonight Show Starring Jimmy Fallon, Christina Aguilera stopped by to chat with Seth Meyers and treated him to another spot-on impression. Years ago when Aguilera hosted Saturday Night Live, she played Samantha from Sex and the City, 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!