So MTV.com decided to celebrate Justin's milestone by looking back on 18 of his greatest moments so far.
Whether he's dazzling us with killer performances, topping the box office and the Billboard charts or just dropping yet another memorable music video, the Biebs has kept us talking since he first rose to super fame way back in 2009.
Narrowing down all of those moments was no easy task. The list includes Justin's career successes and his personal achievements.
Check out MTV.com eevery day leading up to the final reveal on Justin's big day, Thursday, March 1.
Check out Justin's 18 milestones at MTV.com > Click here
Story source MTV.com
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Photo source danielatamayo.com