Sigur Rós are an Icelandic post-rock band from Reykjavík who have been active since 1994. Known for their ethereal sound, frontman Jónsi Birgisson’s falsetto vocals, and the use of bowed guitar, the band’s music is also notable for its incorporation of classical and minimalist aesthetic elements. The band is named after Jónsi’s sister Sigurrós Elin.

The band often sing in Icelandic, and gibberish vocals known as Vonlenska (or “Hopelandic”), which was coined from the title track of their debut album Von.