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

Think about your next holiday party as a kind of “flash mob” performance. Imagine a crowd of people milling in a bus station, when suddenly a choir materializes and sings the “Hallelujah Chorus.” ...

ABINGTON, MASS. (WHDH) - Students at Abington Middle School had a meal and a show at school on Friday. Teachers surprised students with a flash mob performance at lunchtime, showing off their holiday ...

DECATUR — A Decatur-area group is looking to add a little more Christmas spirit in the form of flash mobs, set to break out during two holiday events early next month.