Mark Donnelly, Canucks Fans Likely to Deliver Memorable Stanley Cup National Anthems

Bruins fans are no strangers to rousing performances of the national anthem. After all, Rene Rancourt has become a Garden legend over the years for his performance of the "Star-Spangled Banner" and his ensuing trademark salute and fist pump.

On Wednesday night in Vancouver, though, Mark Donnelly may just give Rancourt a run for his money. Donnelly will follow Richard Loney's version of the American national anthem with his boisterous performance of "O Canada."

Donnelly's performance is impressive, but it's not without a little help from Canucks fans. The tradition is that Donnelly stops singing midway through, handing over the reigns to the fans, before jumping back in to finish.

Regardless of who you're rooting for, it's a pretty tremendous sight. Check out the video below for the entire pregame presentation from Game 7 of Vancouver's first-round series against the Blackhawks. You can fast forward to the 3:50 mark for Donnelly's version of "O Canada."