WATCH: 'Games Of Thrones' Cast Covers Tom Waits Behind the Scenes

They may not be the Kings of the North, but they are definitely the kings of breaking hearts.

As Game of Thrones fans have seen, Tormund (Kristofer Hivju), Sandor "The Hound" Clegane (Rory McCann), Ser Jorah (Iain Glen) and Beric (Richard Dormer) are some of the hardest, grizzly, "don't f**k with me" individuals on this side of Westeros.

But when they're not out defending the fate of the Seven Kingdoms from the looming horror that is the Night King and his army of the dead, these four warriors enjoy a good campfire song or two!

In a recent post to his Instagram, Kristofer recorded himself and his fellow actors in a guitar & ukulele cover of "I Hope That I Don't Fall in Love With You" by Tom Waits. Check it out!

BROTHERHOOD WITHOUT BANJOS This is our latest hit "Anthem over season seven end". On Guitar #iainglen ! On the ukulele #richarddormer, and choir Mr. #rorymccann and myself! Our new album is called: "What will fate bring us???" #brotherhoodwithoutbanjos #throwbackthuresday #got7 #behindthescenes #tomwaits

A post shared by Kristofer Hivju (@khivju) on Aug 31, 2017 at 12:40pm PDT