Every once in a while, crowded train stations have been known to break into song and dance and then disperse as if nothing happened. Large groups of people freeze for a period of time and then ...

Improv Everywhere is a New York-based comedy troupe known for its unexpected flash mobs. For its latest mission, the group ...

This is pretty sweet. And an orchestral flash mob is a good flash mob because it doesn’t feel the same as when the just-post-kids take over the streets with their Thriller moves. It feels as formal ...