Cast and members of ABBA appear together at the premiere of the motion picture version of the musical 'Mamma Mia' in Stockholm July 4, 2008. From left to right are: ABBA's Benny Andersson, Pierce Brosnan, Amanda Seyfried, Meryl Streep, Abba members Agnetha Faltskog and Anni-Frid Lyngstad, Christine Baranski, Colin Firth, screenwriter Catherine Johnson (pointing), director Phyllida Lloyd, producer Judy Craymer and ABBA member Bjorn Ulvaeus. REUTERS/Bob Strong