ABBA was a Swedish pop music group formed in 1970 and split up in 1982. They became well known when they won the 1974 Eurovision Song Contest with their song "Waterloo".
The band consisted of the two couples Björn Ulvaeus and Agnetha Fältskog, and Benny Andersson, and Anni-Frid Lyngstad (nicknamed "Frida").
The band's name ABBA is an acronym based on the first letters of each member's name.
The musical Mamma Mia! based around the songs of ABBA opened in London England in 1999.
Abba are following in the footsteps of The Beatles, Elvis Presley and Michael Jackson with the Number Ones concept, and we're assuming that the designation applies to charts from around the world. There are 18 songs on the album, but no Abba song ever hit #1 in Canada, 'Dancing Queen' was the only one to do it in the U.S., and seven singles did it in the U.K. So the 1974 Eurovision Song Contest winners must have made a major impact in a number of non-English-speaking territories. A collection of all the international #1 hits on one CD delivered to the Abba fans.
