As if die-hard hockey fans needed another reason not to listen to Justin Bieber, the young musician recently committed a serious no-no. While visiting the Chicago Blackhawks locker room before a performance at the United Center Bieber was photographed stepping on the large team logo placed on the floor. Blackhawks player Andrew Shaw was quick to call Bieber on his faux pas.

Bro no stepping on the logo @justinbieber that's money on the board! #gutty pic.twitter.com/DtgRo4loMn

— Andrew Shaw (@shawz15er) July 10, 2013

Bieber, who is Canadian and therefore a hockey fan, should have known better. Not stepping on the logo is a tradition around the NHL, a way to show respect to the team. Even though Bieber was probably entranced by being in the same room as the Stanley Cup, he could have shown greater awareness.

In the wake of the international incident the Boston Bruins took greater measures to insure that their logo does not get trampled on by the Biebs. In preparation for his performance at TD Garden the Bruins roped off their famous B logo.

Boston Bruins make sure Justin Bieber won't step on their logo: http://t.co/80CeYqUahJ / pic.twitter.com/UjHii0heZl

— Sporting News (@sportingnews) July 21, 2013

That the Bruins would go to such lengths to protect their logo illustrates just how seriously teams take the tradition. Much like the playoff beard, keeping your feet off of the team logo is serious business in the NHL, and is a rule that Bieber is unlikely to forget again.