Seyfried's performance adds to the film's appeal, carrying both the story and the music throughout the years. Mamma Mia!'s ...

For almost a quarter of a century, audiences have clamored for the fun and festivity of "Mamma Mia," the hit stage show based on the music of Swedish superstars ABBA.

Amanda Seyfried dreams of singing the title song in a Mamma Mia film Amanda Seyfried is open ... EW review Cher was in an ABBA music video and more fun reveals from the Mamma Mia!