According to reports, Icelandic rockers Sigur Rós are set to make an appearance on the upcoming season of HBO's hit TV series Game Of Thrones.

The post-rock band is currently in Croatia shooting scenes for the fantasy drama, but details surrounding their appearance and roles remain unknown.

This isn't the first american TV show appearance for the group. In May, they appeared on an episode of The Simpsons.

Earlier this year, Coldplay star Will Champion appeared on Game of Thrones' third season as a drummer, and cancer-stricken rocker Wilko Johnson portrayed a silent executioner.