The Simpsons (1989): Season 26, Episode 15

26 - 15: The Princess Guide

Homer is put in charge of keeping Princess Kemi out of trouble while her father, a Nigerian king, works out a uranium deal with Mr. Burns. When Kemi ends up at Moe's, Moe jumps to the conclusion that she must be related to the Nigerian prince who scammed him over email and schemes to get his money back. But much to his surprise, he finds himself falling for the princess.