Game of Thrones has booked Icelandic indie band, Sigur Ros to appear on its upcoming fourth season, Entertainment Weekly reports.
Jón Þór “Jónsi” Birgisson, Georg Hólm and Orri Páll Dýrason are currently shooting an episode for the series set in Croatia. Details on their roles are being kept under wraps.
In the past seasons, other members from popular bands like Coldplay and Snow Patrol have also been cast for small roles on the HBO fantasy drama. The National and The Hold Steady have also performed "The Rains of Castamere" and "The Bear and Maiden Fair," respectively, for the show.
Thrones returns to HBO next spring.