![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)
Improv Everywhere MP3 Experiment 10- 7-00 PM (60 of 122) | Flickr - Photo Sharing! | Event catering, Backyard party, Experiments
![A girl slow dances with an article of clothing as she takes part in the Mp3 Experiment in New York's Times Square October 2, 2010. The event, organised by Improv Everywhere, involves A girl slow dances with an article of clothing as she takes part in the Mp3 Experiment in New York's Times Square October 2, 2010. The event, organised by Improv Everywhere, involves](https://c8.alamy.com/comp/2E6BCAT/a-girl-slow-dances-with-an-article-of-clothing-as-she-takes-part-in-the-mp3-experiment-in-new-yorks-times-square-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-2E6BCAT.jpg)