The Joy of ABBA

ABBA was a Swedish pop group formed in Stockholm in 1972, comprising Agnetha Faltskog, Bjorn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. ABBA is an acronym of the first letters of the band members' first names and is sometimes stylized as the registered trademark ᗅᗺᗷᗅ. The band became one of the most commercially successful acts in the history of popular music, topping the charts worldwide from 1975 to 1982. It also won the Eurovision Song Contest 1974, giving Sweden its first triumph in the history of the contest and being the most successful group ever to take part in the competition.
(from wikipedia.org)

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