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Celebrity birthdays in March

Justin Bieber, one of the most popular young pop stars in the world, turns 18 on March 1, 2012.   (Pictured: Justin Bieber appears on stage at Michael Jackson's hand and footprint ceremony at the Grauman's Chinese Theatre on Jan. 26, 2012. Check out exclusive videos from the event.) <span class=meta>(OTRC)</span>
March 8, 2012 12:00:00 AM PST