Tyler Bertuzzi treated to a special song after his hatty.

The Toronto Maple Leafs have a new-look second line that has been performing well for them over a relatively small sample size, and it seems as though Maple Leafs head coach Sheldon Keefe may be utilizing some natural chemistry to his benefit.

On Saturday night, following a big comeback win for the Maple Leafs over a playoff bound Colorado Avalanche squad, Maple Leafs forward Max Domi serenaded his teammate Tyler Bertuzzi to a wonderful little song of celebration following their victory. Bertuzzi, who turned 29 on Saturday, played hero in that game by picking up 3 of the Maple Leafs 4 goals on the night, including the goal that would prove to be the game winner.

The video, which was published by Domi via his Instagram, is already rapidly making the rounds on social media, and shows Domi belting out his rendition of "Happy Birthday" which seems to absolutely delight Bertuzzi who is smiling from ear to ear the entire time.

It is very clear from this video that these two have a natural chemistry, and that is no doubt contributing to their success on the ice.