To be honest with you I never knew nor had I ever heard of the existence of "ABBA" I saw both movies Mamma Mia 1 @ 2. And just figured the songs were written for these movies. I was informed by some members of our " MARINE CORP BAND " That no a group named "ABBA" were the originators and group that first sang all the songs, but in the movies, actors performed and sang the songs. So I purchased a CD called "ABBA" And I loved the sound of "abba" much better than the songs sung by actors and actresses in the movies. So if you want to relax and listen to real talent buy the CD "ABBA" and let the take you on a journey that will want you to go back again, and again into the sound of "ABBA"