Oh yeah!
Benny: Shortly before the single was released, we performed 'Dancing Queen' at a gala evening in the Royal Swedish Opera House, which was celebrating the marriage of King Carl Gustav XVI to Queen Silvia. They had asked us if we would be prepared to perform there and we said, 'Yes'. The only thing was that we should be in period costume, so we said, 'Sure', and did the show in baroque outfits. And the song we had produced most recently happened to be 'Dancing Queen'. It was just a coincidence...(Quoted from the book 'Mamma Mia how can I resist you')
