Alberta-born country star Brett Kissel was on hand to sing the Canadian and American national anthems, but his mic faltered when he tried to launch into "The Star-Spangled Banner." Fans at Rogers Place, however, stepped in and belted out every word.
Kissel later thanked attendees on Twitter, declaring that the "best singers and fans are in #OilCountry!"
Hockey Night in Canada gave a cheesy shout-out to the stand-in singers too.
Celebrities from the worlds of TV, sports, music and politics also showed their appreciation for the impromptu performance.
Dear @EdmontonOilers fans, singing both anthems was amazing!!! Well done.— Gerry Dee (@gerrydee) May 1, 2017
Very proud of you Edmonton... https://t.co/jZCW2QiTM9— Colin Hanks (@ColinHanks) May 1, 2017
So awesome that @EdmontonOilers fans sang the American Anthem last night. Thanks for respecting our nation. Hockey fans are the finest!— Jeremy Roenick (@Jeremy_Roenick) May 1, 2017
Hell, even far-right U.S. site Breitbart gave the Oilers fans props.
some of you guys are alright https://t.co/9ALmqBj9Yd— Breitbart News (@BreitbartNews) May 1, 2017
Despite the fans' valiant anthem delivery, the Oilers ultimately lost the game 6-3 to the visiting Anaheim Ducks.
Relive footage of the heroic anthem save below.