Have you heard of them? Flash Mobs? It's where people "spontaneously" start doing something together. Of course, it's planned - groups like improve everywhere (improveeverywhere.com) set up some hilarious stunts - some with just a few people, some with hundreds.
The best one? The Oprah Flash Mob - for her 24th season opener, she had the Black Eyed Peas performing. What she didn't know was that they had a surprise for her. 20,000 people performing the same dance "spontaneously" in the outdoor performance for the show opener. It's just awesome to watch.
I totally forget how to imbed a Youtube video, so you'll have to CLICK ON THIS LINK to go to Youtube to see the Video. If it doesn't work, to go YouTube and search "Flash Mob Oprah Black Eyed Peas" and a bunch of various versions will pop up. Watch the freaky girl in the front row. No one else is moving. Then see what happens. Stay til the end and see Oprah's shock. Really, it's worth the click, I promise!
I am addicted. My Son and I have joined Improveeverywhere and hope to be in one some day!