If the Stanley Cup Final's super fan -- the one who hid a catfish in his shorts and then hurled it onto the ice, then stood up to three charges filed by Pittsburgh police -- did not spark more support for the Nashville Predators, it appears Justin Bieber will.

The Canadian-born pop star was seen donning a Toronto Maple Leafs jersey in April, but in an Instagram selfie Wednesday, with Game 2 of the Preds and Pittsburgh Penguins showdown on tap for the evening, Biebs is shown rocking a Pens jersey in a locker room.

A post shared by Justin Bieber (@justinbieber) on May 31, 2017 at 8:22am PDT

And, unsurprisingly, Bieber's caption-less pledge of support for the Penguins has prompted an outcry from fans of both sides, especially those (once) pulling for Steel City.

Sorry, Pittsburgh.