Átta (lit. ’Eight’) is the eighth studio album by Icelandic post-rock band Sigur Rós, released through Von Dur and BMG Rights Management on 16 June 2023. It is their first studio album in 10 years, following Kveikur (2013), and is their first since 2012’s Valtari to feature keyboardist Kjartan Sveinsson, who rejoined the band in 2022. The seven-minute lead single “Blóðberg” was released on 12 June 2023 alongside its music video, directed by Johan Renck. Physical editions of the album were released on 1 September 2023. The band embarked on a tour from June to August 2023 backed by a 41-piece orchestra, during which they debuted songs from the album.

The band announced in February 2022 that they were working on their eighth studio album after keyboardist Kjartan Sveinsson rejoined the band. Jónsi explained that when Sveinsson rejoined the band, Sveinsson came to visit him in Los Angeles, where they jammed and wrote together in Jónsi’s basement. After he left, the COVID-19 pandemic happened, and it took two years before Sveinsson met up with Jónsi in Los Angeles again, after which point Georg Hólm joined them “and it became more of an album”. All three then travelled to Abbey Road Studios in London, where they recorded with the London Contemporary Orchestra, led by conductor Robert Ames. The band also recorded at their Sundlaugin studio in Iceland and multiple studios in the US.

Jónsi said the band’s intention with the music was “to have minimal drums and for the music to be really sparse, floaty and beautiful”. They produced the album alongside Paul Corley. The album was also inspired by a “desire for a feeling of unity when overwhelmed by the tumultuous circumstances”, with Hólm stating that the album “feels like a balming and unifying bond”, calling it “more introverted than before. It’s very expansive with this sound of strings, but it looks within more than outside”.