Justin Bieber & Will.i.am Show Off That Power Perform At The 2013 Billboard Music Awards! WATCH HERE!

Talk about a dynamic duo!

Justin Bieber showed just why he won Best Male Artist when he took the stage Will.i.am at the Billboard Music Awards and busted some SERIOUS dance moves!

Ch-ch-check out the two as they strut their stuff (above) while performing That Power!

Source: http://perezhilton.com/2013-05-19-billboard-music-awards-2013-william-justin-bieber-performance

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