Kim Kardashian! Katy Perry! See the stars sure to wish the singer a very happy birthday when he turns 17 on March 1!
Credit: Courtesy Justin Bieber
Updated: Tuesday Mar 01, 2011 | 06:00 AM EST
By: Cara Lynn Shultz
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"Such a legend! Wow! It's Mary J!" the excited singer wrote about his up-close and personal encounter with the Grammy winner at a launch party for the new music and entertainment site Vevo.
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