Justin Bieber is no stranger to weird clothes, but apparently he's pretty keen on no clothes at all too. Biebs stripped off his pants and underwear in photos that were leaked to TMZ allegedly taken back in October of 2012.
Justin is wearing nothing but a guitar as he is shown serenading his grandmother. The naked performance was reportedly Justin's way of apologizing to his Nana for sleeping through much of their (Canadian) Thanksgiving celebration.
Grandma B must be so proud... the NSFW photo is below! Be warned... there's Bieber bum ahead.