The Oompa-Loompas are workers at Willy Wonka's factory. They are small humans who were preyed upon by the various predators that reside in their homeland before Wonka invited them to work at his factory. They are paid in their favorite food, cocoa beans, which were extremely rare on their island. The Oompa-Loompas are mischievous, loving to play practical jokes and singing songs which, according to Wonka, they are very good at improvising. They sing a song at the end of each child's…