For all of its record-breaking success, "Game of Thrones" isn't exactly a happy show. It's the kind of show that makes viewers fall in love with its characters, only to kill those characters in increasingly inventive displays of violence. The good guys lose more than they win. It's bleak.

But it doesn't always have to be so bleak. In fact, when the New Orleans Swamp Donkeys are involved, "Game of Thrones" is bigger and brighter than ever. The jazz band brought NOLA flavor to the world of Westeros during a performance at B.B. King's in New York City this week, covering the "Game of Thrones" theme song with enough fiery passion to please the Lord of Light.

Take a listen for yourself:

"Game of Thrones" wraps its fourth season on Sunday night. What the finale lacks in brass, it'll surely make up for in blood.