who is abba?
For other uses, see Abba (disambiguation). ABBA (stylised as ááºá·á; Swedish pronunciation: [Â²abËa]) were a Swedish pop group formed in Stockholm by Agnetha FÃ¤ltskog, BjÃ¶rn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. They became one of the most commercially successful acts in the history of popular music, topping the charts worldwide from 1974 to 1982.