If you have a problem with the jukebox musical, blame Mamma Mia! While it was not the first show to recycle a particular act's songs (Beatlemania, anyone?), it has certainly been the most successful, as it has played to pack houses of ABBA fans from Las Vegas to Osaka. The jukebox musical's success on Broadway has been somewhat checkered; for every Mamma Mia! or Movin' Out, there are four Good Vibrations.