The following video features the cover of a song from Frozen and... WAIT! COME BACK!
The song is not "Let It Go."
But that's not the only reason you should watch: the duet partners are a young cancer patient and her male nurse, the latter of whom definitely knows his Disney animated classic.
Watch this unexpected twosome sing "Love Is an Open Door" and prepare to have your heart completely melt in 3... 2... 1...
Impressive and moving, right? Even more so than this dad getting REALLY into Let It Go.
While you're here (and because you know you want to), click through a number of Let It Go covers, renditions and parodies below: