Virgin Group boss Richard Branson initially fooled even the police, who were called to investigate his 1989 April Fools’ prank.
The billionaire prankster collaborated with a hot-air balloon manufacturer to construct a balloon resembling a UFO. Early-morning London highway traffic stopped to witness the “UFO” flying overhead with lights flashing every ten seconds. Emergency services, the army, and national media were alerted to an impending alien invasion.
Landing in a Surrey field, the occupants alighted wearing elaborate space costumes. This reportedly frightened a policeman into a hasty retreat before he realized that he (and many others) had been the unwitting victims of an elaborate April Fools’ Day prank.