Why the hell not? He is Justin Bieber after all.
While dressed as some sort of lumberjack, Justin was caught by a fan showing off his moves while waiting for a coffee. Not only can you see his TIGHTY WHITEYS, but some creep thinks they can see him wearing a jock-strap too.
Justin hasn't been having the best time lately, being dumped put on a break with Selena Gomez and all. But he seems to be taking it all in his stride and enjoying life anyway.
He's been hanging with friends, playing hockey and soccer, attending all his usual church services, and well... twerking in a cafe.
You do you Biebs.