"Ágætis byrjun" by Sigur Rós was released in 1999 but didn't get proper attention until touring with Radiohead in 2000. The Icelandic post-rock band's sophomore album is lead by Jónsi Birgisson's haunting falsetto vocals partially in Hopelandic, a nonsensical language created by the band, is unlike anything from the time period. The album blends ambient, classical, and rock elements, creating a dreamlike and cinematic atmosphere. Each track is like it's own mini-movie, exploring a new sonic landscape that evokes everything from blissful euphoria to introspective melancholy. Hailed as a landmark album that pushed the boundaries of experimental music, the band employ a mix of classical orchestration and modern electronic elements, creating a one-of-a-kind cinematic and atmospheric experience.