Justin Bieber sings Baby live by David Letterman. MY WORLD 2.0 is out in STORES…and I THANK U!! The GOLDEN TICKETS are out in the albums in the stores…fi… http://www.youtube.com/v/xwaFjRVkBHg?version=3&f=videos&app=youtube_gdata Read the rest here: Justin Bieber sings Baby (David Letterman Live)
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Justin Bieber sings Baby (David Letterman Live)
