ABBA dominated the pop landscape of the 1970s and 1980s with infectious melodies, sophisticated harmonies, and an unshakeable sense of joy. The Swedish supergroup's catalog remains a goldmine for music educators: their songs are built on genuine vocal writing that rewards ensemble singers, their production sensibilities translate beautifully to choral arrangements, and their melodies lodge themselves in singers' minds immediately. For choirs, ABBA represents accessible entry into contemporary music that doesn't talk down to singers or audiences.