ABBA is a Swedish pop group that was formed in 1972. The band consists of four members: Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. ABBA is one of the most successful bands of all time, having sold over 380 million records worldwide. The band broke up in 1982, but they have since reunited for several special occasions. All four members of ABBA are still alive today.