[vodpod id=Video.16503648&w=600&h=404&fv=]
Similar to his face-off with Michelle Obama, Jimmy Fallon challenged Justin Bieber to manly feats of strength on Thursday night — such as checkers and a dance-off.
Mitt Romney's sons pull pranks on their Dad, Alec Baldwin pulls down his pants, and more.
[vodpod id=Video.16503648&w=600&h=404&fv=]
Similar to his face-off with Michelle Obama, Jimmy Fallon challenged Justin Bieber to manly feats of strength on Thursday night — such as checkers and a dance-off.