All ages having fun in the "Silent Disco" at Bonnaroo.
For those who have never been, it is a massive dance area under a tent with no audible music from the outside. You must wear your headphones or the headphones they provide for you. If you wear their headphones you hear the DJ (he can be seen in the background).
"Youth can not know how age thinks and feels. But old men are guilty if they forget what it was to be young.” ― J.K. Rowling, Harry Potter and the Order of the Phoenix