ABBA (often stylized as ABA) was a Swedish pop/rock group formed in Stockholm in 1972, comprising Agnetha Fltskog, Benny Andersson, Bjrn Ulvaeus and Anni-Frid Lyngstad. They became one of the most commercially successful acts in the history of pop music, topping the charts worldwide from 1972 to 1982. They are also known for winning the 1974 Eurovision Song Contest, giving Sweden its first victory in the history of the contest and being the most successful group ever to take part in the contest.

ABBA has sold over 370 million records worldwide and still sell millions of records a year, which makes them one of the best-selling music artists. ABBA was the first pop group to come from a non-English-speaking country that enjoyed consistent success in the charts of English-speaking countries, including the UK, Ireland, the U.S., Canada, Australia, New Zealand, South Africa and the Philippines. The group also enjoyed significant success in Latin American markets, and recorded a collection of their hit songs in Spanish.