ABBA is a legendary pop music group from Sweden, formed in 1972 by Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. They're famous for their catchy melodies, unique harmonies, and timeless hits like "Dancing Queen," "Mamma Mia," and "Take a Chance on Me." They won the Eurovision Song Contest in 1974 with "Waterloo," skyrocketing them to global fame. ABBA's influence on music and pop culture is massive, and their songs are still loved worldwide. In 2021, they made a stunning comeback with their album Voyage.