ABBA was a pop music group formed in Sweden in 1970, consisting of Anni-Frid Lyngstad (Frida), Björn Ulvaeus, Benny Andersson (the B-boys) and Agnetha Fältskog (Anna). Both Anni-Frid and Benny were married.
So were Bjorn and Agnetha but both couples later divorced. They became one of the most commercially successful vocal groups in popular music, and topped the charts worldwide from 1972 to 1982.
Website: http://www.abbaworld.com/ You Tube Sidebar: Brighnights June 4th, 2006.