- Alf Björnberg
Swedish pop group. Its members were Benny Andersson (b Stockholm, 16 Dec 1946), Agnetha Fältskog (b Jönköping, 5 April 1950), Anni-Frid Lyngstad (b Ballangen, Norway, 15 Nov 1945) and Björn Ulvaeus (b Göteborg, 25 April 1945). Having established separate careers within Swedish pop they started working together in 1970, from 1972 under the name Björn, Benny, Agnetha och Anni-Frid. The acronym ABBA was adopted in 1973. Their victory in the Eurovision Song Contest in 1974, with Waterloo, launched the most successful international career to emerge from that context. During the period 1974–82 the group attained global popularity with songs such as Mama Mia (1975), Fernando (1976), Dancing Queen (1976), The Name of the Game (1977), Take a chance on me (1978) and Super Trouper (1980), all of which were number one hits in the UK, and albums such as ...