Area residents dressed in festive costumes gather on Maplewood Road to perform for trick-or-treaters as the crowd watches during a Halloween flash mob Thursday, Oct. 31, 2024, in Riegelsville. The ...

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

This video is no longer available. D.C. tourists visiting the Jefferson Memorial got a treat on Saturday afternoon, when the International Flash Mob of West Coast Swing took over the Tidal Basin.

Flash mobs can be lots of fun and the craze is growing. For the uninitiated, a flash mob is a group of people who plan to descend on a store, shopping mall or other public place with an impromptu song ...