A post that appeared on Jónsi's official site on 26 May 2009 stated that the artist was working on a new solo album that would feature predominantly acoustic music and string arrangements from classical composer Nico Muhly.
The album was set to be produced by Peter Katis (Interpol, The National, Tokyo Police Club).

On 4 December 2009, a free MP3 of the track "Boy Lilikoi" was made available to mailing list subscribers through the website.
The MP3 announced the title of the album to be Go, and gave a worldwide release date of 'the week of 5 April 2010' through Parlophone and XL Recordings.

On 5 April 2010, as promised, the album was released in Iceland and the United Kingdom, with a worldwide release date of the following day.
The album was sung mainly in English, making a change from the majority of Jónsi's previous work, which was sung mainly in Icelandic and Vonlenska.
The album charted at No.20 on the UK album charts on 12 April 2010, and reached No.
23 on the Billboard 200.

The Go limited edition box set also included Go Quiet, a 45-minute film, directed by Dean DeBlois (director of the Sigur Rós concert film Heima), that features all nine songs from the album performed acoustically at home in Reykjavík, over New Year 2010.

Jónsi went on tour with his album Go on 6 April 2010.
The tour did not include any venues within Jónsi's home country of Iceland.
The artist's touring band included Alex Somers on guitar, sound effects, and keyboards; Thorvaldur Thór Thorvaldsson on drums; Ólafur Björn Ólafsson on keyboards; and Úlfur Hansson on bass and monome.
A post that appeared on Jónsi's official site on 26 May 2009 stated that the artist was working on a new solo album that would feature predominantly acoustic music and string arrangements from classical composer Nico Muhly. The album was set to be produced by Peter Katis (Interpol, The National, Tokyo Police Club).
On 4 December 2009, a free MP3 of the track "Boy Lilikoi" was made available to mailing list subscribers through the website. The MP3 announced the title of the album to be Go, and gave a worldwide release date of 'the week of 5 April 2010' through Parlophone and XL Recordings.
On 5 April 2010, as promised, the album was released in Iceland and the United Kingdom, with a worldwide release date of the following day. The album was sung mainly in English, making a change from the majority of Jónsi's previous work, which was sung mainly in Icelandic and Vonlenska. The album charted at No.20 on the UK album charts on 12 April 2010, and reached No. 23 on the Billboard 200.
The Go limited edition box set also included Go Quiet, a 45-minute film, directed by Dean DeBlois (director of the Sigur Rós concert film Heima), that features all nine songs from the album performed acoustically at home in Reykjavík, over New Year 2010.
Jónsi went on tour with his album Go on 6 April 2010. The tour did not include any venues within Jónsi's home country of Iceland. The artist's touring band included Alex Somers on guitar, sound effects, and keyboards; Thorvaldur Thór Thorvaldsson on drums; Ólafur Björn Ólafsson on keyboards; and Úlfur Hansson on bass and monome.
Jónsi