DANCING QUEEN explores the lives and music of Björn, Benny, Agnetha, and Anni-Frid. The Swedish foursome rose to the top of the pop charts with effervescent hits such as "Mamma Mia,""Fernando," and, of course, "Dancing Queen." Though this unauthorized look at the band doesn't feature any of ABBA's music, it includes interviews, documentaries, and rare footage and photos of the group.