Justin Bieber's 18th birthday: A celebration for singer and fans
In honor of Bieber's March 1st birthday, fans will try to break a Guinness World Record for "Most Social Media Messages Within 24 Hours." "Beliebers" are being asked by AgencyNet to visit HappyBirthdayJustinBieber.com on Thursday to receive a specific message to post on social media sites in hopes of reaching 209,772 -- the number needed to break the existing record.Pictures: Justin Bieber
And in keeping with the birthday spirit, Hallmark will release a series of Justin Bieber greeting cards this April.
Fans will get to see Bieber on "The Ellen DeGeneres Show" on Thursday for what's being touted as a "spectacular celebration."
Bieber will also make an appearance on Ryan Seacrest's radio show on his birthday.
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