ABBA is a Swedish pop supergroup formed in 1972 by Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. One of the most popular and successful musical groups of all time, they are the best-selling band originating in continental Europe. During the band's active years, it consisted of two married couples: Fältskog and Ulvaeus, and Lyngstad and Andersson. After ABBA separated in 1982, Andersson and Ulvaeus continued their success writing music, while Fältskog and Lyngstad pursued solo careers. ABBA Gold, a compilation released ten years after the group broke up, became a worldwide best-seller. In 2016, the group reunited and started working on a digital avatar concert tour. Voyage, their first new album in 40 years, was released on 5 November 2021.