YouTube's April Fool's prank offers just enough unrealistic possibility to convince people it will really happen. Google said the company is based on an 8-year-long contest. When the winner is chosen the site will shut down. The video shows cameos by YouTube celebrities like Matt Harding, iJustine, kids from "Charlie Bit My Finger" and "Evolution of Dance" guy. The winner gets an MP3 player that clips to the sleeve and a $500 stipend to tackle the next video project.