Mamma Mia by Abba

"Mamma Mia" is a song by the Swedish pop group ABBA, written by Benny Andersson, Björn Ulvaeus and Stig Anderson, with the lead vocals shared by Agnetha Fältskog and Anni-Frid Lyngstad. It is the opening track on the group's third album, the self-titled ABBA. The song's name is derived from Italian, where it is an interjection used in situations of surprise, anguish, or excitement, which corresponds to the English interjection "my, my!" but literally means "My mother". The interjection "my my" can indeed be found in some lines within the song.