Tate McRae is basically the Canadian Benedict Arnold in some fans' eyes this week ... after the pop star dropped a promo hyping up Team USA in the Olympics -- despite hailing from the North.
The "Revolving door" singer shared the ad on her Instagram ... showing her skiing up to an owl to discuss NBC's packed schedule this weekend -- the Winter Games' Opening Ceremony, figure skating events, Lindsey Vonn's big return, and oh yeah, the Super Bowl on Sunday.