Photo courtesy of Helen Sloan/HBO

Mastodon band members Brann Dailor, Bill Kelliher, and Brent Hinds portrayed "wildlings" on tonight's episode of "Game of Thrones", which was filmed in Belfast in Northern Ireland. As previously reported, the band's original song "White Walker" is featured on the "Game of Thrones" mixtape Catch the Throne Vol. 2, but in the instance of their physical appearance, a press release from Reprise Records reports that the band was personally invited to participate in the show by "Game of Thrones" executive producer Dan Weiss, who is a fan of the band.

Brann Dailor said of the experience:

It was such an incredible experience to be on set as extras for our collective favorite show Game Of Thrones and to be wildlings murdered and then brought back to life by White Walkers was beyond amazing. I watched my best friends Brent and Bill, murdered right in front of me as I myself was stabbed in the stomach and had my throat slit multiple times, and I didn't mind at all. It made me love being in Mastodon even more. We are more than privileged and honored to have been a part of one of the greatest stories ever told on film, and the catering wasn't bad either.

Watch Mastodon's video for "The Motherload", below. (Read our interview with the band's Brann Dailor about the video.)