Americans Mastodon shared the track "White Walker", which will appeared on "Catch the Throne Vol. 2" mixtape, a companion to TV-show "Game of Thrones".
The mixtape also includes tracks recorded by bands Anthrax, Killswitch Engage and Mushroomhead. "Catch the Throne Vol. 2" is scheduled for release in March 17th. The premiere of the 5th season of "Game of Thrones" will be held in April 12th via HBO.