DeletedUser31931
lol this is so stupid.. can you explain this http://www.youtube.com/watch?v=YOxVjbGvUpI
1. Sound travel far.
Example we have a holiday home its on a hill its 2 towns that is directly alongside each other divided by a river . If a concert is taking place in the other town more than 4 kilometers away usually at their sea beach you can hear almost every word. Same here if the locals here decides to hold a christmas party the dam is more than 3 kilometres away but i can drive another 2 kilometres and the sound will still be very audible.
All that is required is a power generator a lonely place and a great audio system. Probably some sound guys playing practical jokes in between concerts.
Two words. Flash Mob