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

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 ...

These jugglers organized a special flash mob where they gathered together on the A train in New York City and out of nowhere, began to juggle among their fellow commuters on the subway. National Guard ...