A famous song by a band called ABBA. ABBA was a Swedish pop music group formed in Stockholm in 1972, consisting of Anni-Frid "Frida" Lyngstad, Björn Ulvaeus, Benny Andersson and Agnetha Fältskog. They became one of the most commercially successful acts in the history of popular music, topping the charts worldwide from 1972 to 1983.