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

Watch where you suntan this weekend. The prank group Improv Everywhere is planning a fancy beach flash mob in New York City where they’ve asked people to show up at the beach wearing black-tie attire.

Shoppers and employees at the 5th Avenue Gap in Manhattan got to experience the creepy, seemingly impossible scenario of a mannequin coming back to life first-hand. Watch what happens in the video ...