Thanks to being scouted on YouTube, Justin Bieber was plucked from obscurity at age 13 where his early career saw him mentored by Usher and now at 22 the headline making, Calvin Klein wearing, hair flicking singer-songwriter has entered a new phase of life - ADULTHOOD.
Scroll through our gallery to check out 10 times we fancied the pants off [not-so-]little Justin and shop below to get yourself or your man some tighty whities like the Calvins he's so fond of!
+ Keep an eye out in the gallery for his b'day celebration video with P. Diddy...
Photo Credit: Tumblr, HollywoodLife, Radio One, E Online, Daily Mail, GQ, Lovelace
Video Credit: HollywoodCIA, Justin Bieber Videos 2.0
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