I'll never forget the first time I heard Dancing Queen - I was on a bus in Switzerland, going to stay with French family friends in Zermatt. (I thought I was going to do French at uni, at that point.) We'd been travelling pretty much in a straight line for quite a while, when suddenly the bus turned left and a stunning mountain vista stood majestically before us. Just then, on the bus radio, Dancing Queen started playing. I'd never heard this song before and in that amazing setting, it just sent shivers down my spine. To this day, whenever I hear it, I'm still transported back to the magic of the Swiss mountains.