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“Improv Everywhere” Massive Balloon Flash Mob

NYC-based improv troupe is back in SF for first time in two years
By - posted 11/18/2013 No Comment

Improv Everywhere’s MP3 Experiment returns to San Francisco for the first time in two years for a participatory public event at The Esplanade at Yerba Buena Gardens at 1 pm on Tuesday, November 19, 2013.

Download an mp3 file to your phone and then head out to Yerba Buena Gardesn and blend in with others. At the predetermined time, everyone presses play. Hilarity ensues as participants carry out ridiculous, coordinated instructions delivered to their headphones via narrator “Steve” and everyone else tries to figure out what the hell is going on.

Improv Everywhere SF MP3 Experiment
Date: Tuesday, November 19, 2013 (rain or shine) – 1pm
Location: The Esplanade at Yerba Buena Gardens, San Francisco

Wear: A Red, Blue, Yellow, or Green shirt
Bring: An uninflated balloon.


  1. Download the Mp3: DOWNLOAD (Right click and save the link. If you just click on the link it will start playing in your browser and spoil the surprise.)
    Note: The filename for the track is “mp3_experiment.mp3″ and the album, artist, and track name will be “Mp3 Experiment.” iOS users (iPhone, iPad, iPod Touch) can also download the mp3 directly to their device via podcast. (Download “The Mp3 Experiment Tour.”)
  2. Load the track onto your mp3 player (iPhone, etc.)
  3. Do not listen to the track in advance – it will spoil the fun
  4. Wear a shirt that is one of the following colors: Red, Blue, Yellow, or Green.
  5. Bring an uninflated balloon. (Any kind of balloon that can be blown up.)
  6. Bring a watch with a second hand (or use your cell phone if it displays seconds.) Before you leave, sync it up to this atomic clock.