It's 50 years since ABBA won the Eurovision Song Contest with Waterloo. To celebrate one of music's 'big bang' moments, the story of Swedish pop - from ABBA to Max Martin, Roxette Europe and Robyn.
Benny Andersson , Agnetha Fältskog , Anni-Frid Lyngstad , Björn Ulvaeus , Robyn , Max Martin
Channel 4 Television