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

Dec. 3 (UPI) --A five-year FBI report shows shoplifting incidents related to flash mob groups are responsible for more than $8 million in stolen goods. On Wednesday, the uniform crime reporting unit ...

Annette John-Hall, in her Philadelphia Inquirer column, writes that more than 40 students showed up on a drizzly morning to hand out carnations and apologize for their classmates who made headlines ...

Law enforcement leaders in the metro are sounding an alarm about a scary new trend in crime. They say so-called flash mobs are sneaking into apartment buildings at night, taking over community rooms ...

A former Michael Jackson dance impersonator who studies at the Divinity School moonwalked across Cross Campus on the evening of Halloween, setting in motion the first “Thriller” flash mob to take ...