http://www.facebook.com/l/UAQBfUhnEAQA0bWRVkMjbzDxBOjPSAIu7Hot7AIYn8nA2-w/www.youtube.com/watch?v=mrEk06XXaAw&feature=player_embedded
As one of the first professional symphony orchestras ever Copenhagen Phil (Sjællands Symfoniorkester) did a flash mob at Copenhagen Central Station on May 2nd 2011 playing Ravel's Bolero. Conductor is Jesper Nordin.