In rare occasions do we see celebrities grow up in the public eye. For better or for worse, it happens and its really an amazing thing to watch because you can literally see the accession or deterioration of that celebrity. For Justin Bieber case, its neither but what is clear is the impact hip-hop has on his life. The gradually change is mind-blowing. So to help, XXL has put together a chronological photo gallery of  Justin from baby Biebs to trap-music Biebs.

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