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Prove you know your Biebers with this Shane Bieber or Justin Bieber quiz

It's time to prove your Bieber fandom. How well do you know Indians pitcher Shane Bieber -- who wanted to make it clear to everyone that he was not pop sensation Justin with his Players Weekend jersey reading "Not Justin." Alternatively, how well do you know pop artist and general human meme Justin Bieber? 

Prove it with the quiz below.