in 1999 the band released ágætis byrjun (‘a good start’), q magazine deemed ágætis byrjun ‘the last great record of the 20th century’. by the end of the year, it had won the inaugural us shortlist prize for artistic achievement in music. this year celebrates the 20th anniversary of ágætis byrjun, the band expand their breakthrough album with never-before-heard material and other rare nuggets, as well as the full 90-minute concert played in reykjavík on the day the record was released in 1999.