![People throw toilet paper in the air as they take part in the Mp3 Experiment in New York's Bryant Park October 2, 2010. The event, organised by Improv Everywhere, involves hundreds of People throw toilet paper in the air as they take part in the Mp3 Experiment in New York's Bryant Park October 2, 2010. The event, organised by Improv Everywhere, involves hundreds of](https://c8.alamy.com/comp/2CWYP2W/people-throw-toilet-paper-in-the-air-as-they-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-acts-reutersjessica-rinaldi-united-states-tags-society-2CWYP2W.jpg)
People throw toilet paper in the air as they take part in the Mp3 Experiment in New York's Bryant Park October 2, 2010. The event, organised by Improv Everywhere, involves hundreds of
![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
![The Mp3 Experiment 9" in which 4000 people make mysterious action all at once according to the directive flowed from the earphone - GIGAZINE The Mp3 Experiment 9" in which 4000 people make mysterious action all at once according to the directive flowed from the earphone - GIGAZINE](http://i.gzn.jp/img/2012/08/01/the-mp3-experiment-9/00_top.jpg)