ABBA was a pop music group formed in Sweden in November 1970. The band consisted of Anni-Frid Lyngstad (Frida), Bjorn Ulvaeus, Benny Andersson and Agnetha Faltskog. Anni-Frid and Benny were a married couple, as were Bjorn and Agnetha (both couples later divorced). The group topped the charts worldwide from 1972 to 1982.