I'm sure you had never heard of this Christmas carol...A Walk off Earth cover.

Love it!

Mele Kalikimaka is the thing to say, 

On a bright Hawaiian Christmas Day, 

That's the island greeting that we send to you

From the land where palm trees sway, 

Here we know that Christmas will be green and bright, 

The sun to shine by day and all the stars at night, 

Mele Kalikimaka is Hawaii's way

To say "Merry Christmas to you."