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 ...

Flowers, chocolates, handwritten cards - and flash mobs. People around the world expressed their love in myriad ways on Valentine’s Day: hanging hundreds of paper hearts in the streets to honor a ...

You’ve probably already heard of flash mobs–their eccentric gatherings have been well documented in media vehicles from the New York Times to Good Morning America ...