ABBA

ABBA was a Swedish pop group active from 1972 to 1982, consisting of Agnetha Fältskog, Anni-Frid Lyngstad, Björn Ulvaeus, and Benny Andersson. Their music combined melodic pop songwriting, close vocal harmonies and polished studio production that incorporated elements of pop, disco, and theatrical pop. Björn and Benny were the main songwriting and arranging partners while Agnetha and Anni-Frid provided the primary lead vocals, creating a distinctive vocal blend and emphasis on melody and hooks.