ABBA was a Swedish Pop cluster shaped in Stockholm in 1972 that consisted of Anni-Frid "Frida" Lyngstad, Björn Ulvaeus, Benny Andersson and Agnetha Fältskog. They became one among the most commercially successful acts within the history of pop music, topping the charts worldwide from 1972 to 1982. ABBA sold over 375 million records worldwide,^{[one][a pair of]} which made them the fourth best-selling fashionable music artists in the history of recorded music. They still sell between two to a few million albums a year.^[three] ABBA was the first pop group to return from a non-English-speaking country that enjoyed consistent success within the charts of English-speaking countries, together with the UK, the U.S., Canada, Ireland, South Africa, Australia and New Zealand. Except for reaching the prime of the charts in several countries like Mexico, Argentina, Brazil, Colombia and Peru among others, ABBA also released a compilation of their hit songs in Spanish.

During the band's existence, Fältskog and Ulvaeus were a married couple, as were Lyngstad and Andersson-though each couples later divorced. At the height of their popularity, both relationships were suffering strain which led ultimately to the collapse of the Ulvaeus-Fältskog wedding (in 1979) and the Andersson-Lyngstad marriage (in 1981). In the late 1970s and early Nineteen Eighties these relationship changes began showing in the cluster's music, as they made more introspective lyrics with completely different compositions.

After ABBA broke up early 1983, Andersson and Ulvaeus achieved success writing music for the stage while Lyngstad and Fältskog pursued individual solo careers with varying success. ABBA's music remained steadily widespread till several films, notably Muriel's Wedding and The Adventures of Priscilla, Queen of the Desert, revived interest within the cluster, spawning several tribute bands. In 1999, ABBA's music was tailored into the successful musical Mamma Mia! that toured worldwide. A movie of the same name released in 2008 became the highest grossing film within the UK that year. The group was inducted into The Rock and Roll Hall of Fame on fifteen March 2010.^[four]