ongratulations, Justin Bieber! You are 19 years old and more successful than most people two, three, and four times your age will ever be. And, if that weren't enough, you can now legally drink beer in your home country of Canada! And so, on this March 1, the day of your birth, what better way to celebrate all that's under that ever-changing hairdo than through the hysterical love of your fans. Grab a Molson, my friend, and scroll on:

Sydney, Australia | July 18, 2012 (REUTERS/Tim Wimborne)

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Sao Paulo, Brazil | Oct. 8, 2011 (REUTERS/Nacho Doce)

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Sydney, Australia | July 18, 2012 (REUTERS/Tim Wimborne)

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Mexico City, Mexico | June 11, 2012 (REUTERS/Henry Romero)

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Sydney, Australia | July 18, 2012 (REUTERS/Tim Wimborne)

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Lima, Peru | October 17, 2012 (AP Photo/Enrique Castro Mendivil)

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Zurich, Switzerland | April 8, 2011 (REUTERS/Christian Hartmann)

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Lima, Peru | Oct. 17, 2011 (REUTERS/Pilar Olivares)

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Sydney, Australia | July 18, 2012 (Brendon Thorne/Getty Images)

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London, England | Feb. 16, 2011 (REUTERS/Luke MacGregor)

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New York, N.Y. | Oct. 12, 2009 (REUTERS/Shannon Stapleton)

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Milan, Italy | June 2, 2012 (Vittorio Zunino Celotto/Getty Images)