Improv Everywhere MP3 Experiment Twelve in Prospect Park, Brooklyn

Improv Everywhere recently conducted their twelfth MP3 Experiment in Prospect Park‘s Long Meadow in Brooklyn, New York. Participants all downloaded an MP4 file (previous experiments used MP3 files) and detailed instructions about what to bring with them and details of when and where the event would take place.

In total, over 4,000 people descended on the park just after sunset to sing, play “Red Light, Green Light,” and claim to be Spartacus among other activities before erupting into a full on dance party.

photos via Improv Everywhere