content: The soundtrack album of the fourth season of HBO series ''Game of Thrones'', titled '''''Game of Thrones: Season 4''''' was released digitally on June 10, 2014, and on CD on July 1, 2014. Season 4 of ''Game of Thrones'' saw the Icelandic band Sigur Rós perform their rendition of "The Rains of Castamere" in a cameo appearance at King Joffrey's wedding in the second episode, "The Lion and the Rose".