Justin Bieber definitely is not 21 but according to this picture he's gotten to know the red solo cup.
According to TMZ this pic was taken when Justin was 17. The claim says he was playing beer pong in Canada "Ehhhhhhhhhhh". Does this surprise you? Do you think JB will be a trainwreck before 21? Are the rules different for Justin Bieber since he is a celebrity?
Full story here http://www.tmz.com/2012/10/09/justin-bieber-beer-pong-photo/