Question: are abba in mamma mia 2 film?
Answer: And just like in the first Mamma Mia!, there's an ABBA cameo in Mamma Mia! 2 you can spot if you're eagle-eyed enough. ... ABBA's Björn Ulvaeus and Benny Andersson composed the music for the original stage musical, and both acted as producers on the original film.