NHL superstars Connor McDavid and Auston Matthews star in a new McDonald's ... McDavid also had to show off a Nickelback song during one of his backhand shots, saying "You know you love 'em." ...

When all is said and done, Auston Matthews will have been a Maple Leaf ... Well, we can just do this song and dance all over again. The rookies are rocking it in a thrilling NHL Calder Trophy ...