OK, we won't lie. It's not going to be easy to pick up the boys' satin superhero jumpsuits with front loading zips that enable you to display a manly thatch of chest hair. They're too embarrassing even for a car boot sale. So opt instead for Bjorn's flared, silver lined jacket, pictured here, singlet vest and jaunty, Roger Moore style white cravat and white flares. Bjorn had obviously been watching one too many episodes of The Persuaders.

Meanwhile you could probably emulate Frida's look here with a cheap, customised white dressing gown while Agnetha's bell bottoms and tie-dyed T-shirt should be relatively easy to come by. But please. Don't use your love of the progressive thinking Swedish superstars as an excuse for some kind of suburban swingers party and don't go around asking if the sauna is "nice and steamy" yet.