The upcoming season of Game of Thrones has taken a turn for the ethereal. Iceland24 is reporting today that Icelandic post-rock group Sigur Rós will appear in the fourth season of HBO's hit fantasy series, which is scheduled to air in spring 2014. According to HBO, band members Jón Þór "Jónsi" Birgisson, Georg Hólm, and Orri Páll Dýrason are currently shooting on location in Croatia, though it remains unclear what role (or music) they'll play in the upcoming season.
The decision isn't a huge surprise, considering that Game of Thrones showrunners David Benioff and Dan Weiss are fans of the band's music — which they listened to extensively while shooting in Iceland — and the show's history of casting musical acts.
Members of Snow Patrol and Coldplay have made guest appearances in earlier seasons, and HBO tapped indie band The Hold Steady to arrange a Westeros tavern song that played over the closing credits of an episode last season.
It’s been a big television year for Sigur Rós. The band was also featured on “The Simpsons” back in May in an episode titled “The Saga of Carl.”
Icelandic weightlifter Hafþór Júlíus Björnsson, who placed third in the World’s Strongest Man competition last month, will play Gregor Clegane, or ‘The Mountain,’ in the fourth series of Game of Thrones.
"Game of Thrones" returns to HBO in Spring 2014.