ABBA

ABBA were a Swedish pop music group active,the most successful popular music group ever to come out of Scandinavia.
The quartet topped worldwide charts and remain a fixture of radio playlists and continue to sell albums,h reportedly sold more than 370 million records
Links http://en.wikipedia.org/wiki/ABBA
http://www.abbasite.com/start/index.php?ret=/start/index.php&flash=yes