![A boy watches as people take part in the Mp3 Experiment in New York's Bryant Park October 2, 2010. The event, organised by Improv Everywhere, involves hundreds of participants listening to a A boy watches as people take part in the Mp3 Experiment in New York's Bryant Park October 2, 2010. The event, organised by Improv Everywhere, involves hundreds of participants listening to a](https://c8.alamy.com/comp/2E67Y1F/a-boy-watches-as-people-take-part-in-the-mp3-experiment-in-new-yorks-bryant-park-october-2-2010-the-event-organised-by-improv-everywhere-involves-hundreds-of-participants-listening-to-a-synchronized-mp3-file-and-following-the-narrated-instructions-on-a-list-of-quirky-actions-reutersjessica-rinaldi-united-states-tags-society-2E67Y1F.jpg)
A boy watches as people take part in the Mp3 Experiment in New York's Bryant Park October 2, 2010. The event, organised by Improv Everywhere, involves hundreds of participants listening to a
![The Mp3 Experiment Nine participatory public event held on Governor's Island in New York Stock Photo - Alamy The Mp3 Experiment Nine participatory public event held on Governor's Island in New York Stock Photo - Alamy](https://c8.alamy.com/comp/CTMHM5/the-mp3-experiment-nine-participatory-public-event-held-on-governors-CTMHM5.jpg)
The Mp3 Experiment Nine participatory public event held on Governor's Island in New York Stock Photo - Alamy
![Improv Everywhere MP3 Experiment 10- 7-00 PM (60 of 122) | Flickr - Photo Sharing! | Event catering, Backyard party, Experiments Improv Everywhere MP3 Experiment 10- 7-00 PM (60 of 122) | Flickr - Photo Sharing! | Event catering, Backyard party, Experiments](https://i.pinimg.com/736x/81/68/0c/81680c300b5157d329e502498a09f988--experiment.jpg)