Joke stolen from: Joann

Long ago, in a far-away kingdom, there lived a wizard and a king. One day, the king grew tired of his wizard friend and decided to replace him with a singer. The night before the singer was to audition, the wizard mixed up a potion and slipped it into the vocalist's wine. When the singer drank it, he was transformed into a three-inch-tall stallion! The next morning, the king called for the singer, but he did not arrive. "Wizard," said the king, "Where is my singer?" "I'm sorry, your majesty," replied the wizard. "It seems after all the drinking he did last night, he's a little horse."