On March 12, 2015, Mastodon released a new track called "White Walker", which appears on the "Game of Thrones: Catch the Throne Vol. 2" mixtape to promote the fifth season of the HBO TV series "Game of Thrones". Dailor, Hinds, and Kelliher also appeared in episode 8 of the season as wildlings. This mixtape will also feature songs by various other acts, ranging from Killswitch Engage to Snoop Dogg. Hinds and Kelliher once again returned to Game of Thrones as wights among the White Walker army for the season 7 finale episode, "The Dragon and the Wolf".