ABBA was a Swedish pop music group,which was active between 1972 and 1982.
The band consisted of Benny Andersson (Sweden),Björn Ulveaus (Sweden),Anni-Frid Lyngstad (Norway) and Agnetha Fältskog (Sweden).
The name is formed by the first letter of each member´s first name.
ABBA gained immense international popularity employing catchy song hooks,simply lyrics and a Wall of Sound achieved by overdubbing the female singer´s voices in multiple harmonies.
Their popularity grew,and they have done tours including Europe,the United States,Canada,Australien,New zealand and south Africa.
The group won the Eurovision Song Contest in Brighton 1974,with the song ´´Waterloo´´.
ABBA is one of the world´s best-selling band,and has sold more than 400 million records worldwide.
They still sell about 2-3 million records a year.