Answer
"Mamma Mia" is a hit single from the Swedish pop group ABBA and the title track of their 1975 album. This iconic song begins with the phrase "Mamma Mia, here I go again" and reflects the protagonist's emotional state at the start of a relationship. Through its upbeat tempo and infectious lyrics, "Mamma Mia" became a signature song for ABBA and a staple of 1970s pop music.