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.

YORK, Maine — Locals can be on the lookout for a flash mob of seniors who recently crashed Short Sands Beach dancing to the music of Dua Lipa and Meghan Trainor. It started with just five dancers on ...

A Flash Mob Dance is a large group of people who assemble suddenly in a public place, perform a brief dance and then quickly disperse. You can go to YouTube to find clips of it in action. What does ...