Bieber has often been on our list of celeb undies sightings with his tendency to sag and let his undies hang out. But this week the Biebs went one step further when he actually stripped down to his Calvin Klein boxerbriefs on live television during 'Fashion Rocks'.
Bieber later tweeted about the incident using the hashtag #mycalvins:
Good times tonight. Thanks for having me tonight #FashionRocks. #mycalvins :)
— Justin Bieber (@justinbieber) September 10, 2014
Did you catch the stunt? What do you think, hot or not?