"Mamma Mia" is a song by the Swedish pop group #ABBA, written by #BennyAndersson, #BjörnUlvaeus and #StigAnderson, with the #lead vocals shared by #AgnethaFältskog and #AnniFridLyngstad. It is the opening track on the group's third album, the self-titled ABBA (1975). The song was released in September 1975 as its sixth single. It tells the story of the narrator's #onagainOffagainRelationship with a lover who is repeatedly unfaithful to her.
https://www.youtube.com/watch?v=U4Sm7v6PDY8