Improv Everywhere is a worldwide federation of improvisers and pranksters who stage spontaneous street theater scenes. The organization is an evolution of the flash mob phenomenon, wherein a group of people employ internet and mobile technologies to cause some kind of public disruption for a few minutes — spontaneously singing a Beatles song in the handbag department at Macy’s, let’s say — then disperse, leaving onlookers befuddled and bemused. Chances are one of Improv Everywhere’s scenes, or as they call them, ‘missions’ — like Food Court — the Musical, Frozen Trafalgar Square or Slo-Mo Home Depot — has crossed your radar. (more…)