Sigur Ros

Sigur Rós is an ambient/post-rock band from Reykjavík, Iceland, who has been active since 1994. Known for its ethereal sound, frontman Jónsi Birgisson's falsetto vocals, and the use of bowed guitar, the band's music is also noticeable for its incorporation of classical and minimalist aesthetic elements.

The band is named after Jónsi's sister Sigurrós. - Wikipedia