The band reveals their wardrobe secrets in Abba: The Official Photo Book. "Nobody can have been as badly dressed on stage as we were. In my honest opinion we looked like nuts in those years."
The Abba members say they exploited a Swedish law which meant clothes were tax deductible if their owners could prove they were not used for daily wear.
Do you buy it? I don't, they look like their having way to much fun it those clothes.