This year is the fiftieth anniversary of Waterloo (the song, not the battle) - a seminal moment in pop history which saw Swedish sensation ABBA burst on to the international music scene. How is it that half a century later this seventies Eurovision act is bigger than ever - reaching listeners of all ages and spinning off into musicals, museums and holograms? Giles Smith, writer and music fan, sets out to find out why.

My My! is a celebration of ABBA through the ages. It's one fan's way of saying: thank you for the music.