The A State of Trance 500 celebration in Den Bosch, The Netherlands on April 9th, was the biggest trance event in the world. Over 20.000 party people from many different nationalities attended the party, that included five rooms with over 40 artists performing. The worldwide audience joined the special live broadcast via the A State of Trance website and via various FM stations. Uniting the world with music, like it has never been done. Enjoy the official video report, made by Dancefoundation. This is an event to remember.