
Christina Aguilera After being in the music business for over a decade, Christina Aguilera 's learned a lot and can give some pretty good advice. She shares tips with her team on her new NBC hit series, The Voice , and now she's spreading a little more tips on The Late Show with David Letterman. During the show's famous "top 103 segment, Xtina dished out valuable advice to aspiring singers. Tips like if your name is Larry, change it to Larry Bieber, meow like a kitty to warm up your vocal chords [...]