MP3 Experiment in San Francisco July 16, 2011 Union Square
Improv Everywhere is a New York City-based prank collective that causes scenes of chaos and joy in public places. Created in August of 2001 by Charlie Todd, Improv Everywhere has executed over 100 missions involving tens of thousands of undercover agents.
Last night, my cousin was talking about it and actually participating too. He showed me the MP3 Experiment in NYC (video below) and I was amazed. Basically, you have to download the MP3 and listen to instructions with your fellow experimenters. Scoop out the video and read the instructions for San Francisco. I really want to do this.. Possibly you will see me there!
For more details for MP3 Experiment in San Francisco:

This is one of the most incredible blogs Ive read in a very long time. The amount of information in here is stunning, like you practically wrote the book on the subject. Your blog is great for anyone who wants to understand this subject more. Great stuff; please keep it up!