Abba dabba do! Piecing the pop giants back together

Once derided by the music press, the Swedes are today regarded as masters of their art. Now, their story is being retold in a new exhibition• See a gallery of images from the Abba: Super Troupers exhibitionOnce upon a time, Abba’s story was lost in the mists of pop’s past. The mere mention of their name would raise a smirk. The satin jodhpurs. The shiny teeth. That glistening, wedding-disco sheen. Those catchy tunes full of hooks, those huge No 1s. How dare those four Swedes com