Peter Jackson handpicked English singer-songwriter Ed Sheeran to compose and produce “I See Fire,” the softly bold track that will close out the second Hobbit film when the credits roll. Jackson posted this video on his Facebook page and here’s an excerpt from his accompanying message to fans:

We have a tradition in our Tolkien films of having a song over the closing credits. It’s very important that the song feels right for the world of the movie – and also carries the emotional resonance of the end of that particular film. The Desolation of Smaug is no different. The ending of this film requires a voice and sensibility that will allow a viewer to process what they have just experienced. It’s always tricky to think of the right person to create and perform these songs. Someone who shares our passion for Tolkien, and somebody who is prepared to respect the film. This year we are thrilled to have Ed Sheeran write and perform our closing song, “I See Fire”.

It was a great experience, and what you will see in this video are moments captured by our behind the scenes team during the creation of the song. But the images are only supporting Ed’s wonderful song. This is his direct emotional response to seeing The Desolation of Smaug, written and performed on the same day he saw the movie.

And his “direct emotional response” turned out to be a thing of beauty. The song balances strength and grace and it’s easy to imagine it play as the second chapter of Jackson’s three-part journey comes to an close.

The Hobbit: The Desolation of Smaug hits theatres December 13. Download “I See Fire” at iTunes today.