Christina Aguilera: Download My Music, I’ll Kick Your Ass! | Celebrity Babies, Christina Aguilera, Jordan Bratman, Max Bratman : Just Jared

Christina Aguilerahushes photographers while arriving back at her hotel with her sleepy son,Max, on Tuesday (May 17) in NYC.

The night before, the 30-year-oldVoicecoach madean appearanceonThe Late Show with David Lettermanto read the Top Ten list.

Some of her top ten tips for aspiring singers:“If your name is Larry, change it to Larry Bieber”;“Be a triple threat: I’m a singer, actress, and part-time tax accountant at H&R Block”; and“Listen to as many different styles as possible, but if you illegally download my music, I’ll kick your ass!”

Christinaalso poked fun at her flub during this year’s Super Bowl, saying,“Learn the lyrics to the National Anthem.” Ha!

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