I love a flash mob! I think that the guy in the hat, the musicians and the waiter were the only ones who knew about it. They probably figured if they started it, people would join in and they were right! It didn't look like the people who were dancing knew about it beforehand. Just fabulous! I love how music and dance can bring total strangers together; if I had been there, I would have joined in and I don't have any idea how to do the Zorba!!!