Habs defenceman P.K. Subban has issued a cheerful challenge to all Canadians.

The challenge? To spread a lot of joy.

He and his young friends at the Montreal Children’s Hospital recorded a video Wednesday to kick off the festive and heartwarming notion.

“I had this idea, let’s great the world’s biggest, largest Christmas carol and cheer up sick kids across the nation,” Subban says in a video he posted to social media.

“Here’s my challenge to all of Canada: Record yourselves singing Jingle Bells and share your video using the hashtag #CanadaCarols.”

A collection of videos will eventually be chosen to be part of a montage that will be shown at children's hospitals across the country on Dec. 23.