So a few months ago somebody posted a video of a flash mob(the artistic kind) that was in Europe somewhere, and it was a little girl and a violin player, but people kept coming out and it turned into a full blown orchestra...I don't remember the name of the thread the video or when it was posted, I just remember what it was about.  If anyone could post a link to it I would greatly appreciate it.

What is a 'Harlem Shake' type video?

 

pretty cool