The story of a double phenomenon: the group who reinvented the world's perception of pop music in the 1970s, and the show based around their hits which became an entertainment industry legend in its own right, opening in 85 cities and seen by over 20 million people. Through the stories, recollections and reflections of ABBA, intertwined with the commentary and observations of the MAMMA MIA! team, this book cuts through the thicket of myths and misconceptions that have grown up around ABBA to reveal what actually happened.