Theatre Trivia Tweet: MAMA Who? The musical MAMMA Mia! was created using various songs written by the group ABBA, What does “ABBA” stand for? SelectReveal Answer> The hit rock group’s name is composed of the first letters of the names of each of the group’s members. Those names are Agnetha, Benny, Bjorn and Anni-Frid. Post navigation previous postNext Post