Richard Branson had invited Paris Hilton on a lavish Mad Hatter-themed 21st birthday party of his son Sam at his Oxfordshire estate, where she dressed as Alice in Wonderland, to look unique. Knowing her plans, Branson ordered the 60 waitresses serving at the party to also dress as Alice. He pushed the prank further by pretending to mistake Paris for a waitress and ordering a drink from her. The bash was attended by the U.K.’s A-list, with such guests as Princes William and Harry, Kate Moss, and Princesses Beatrice and Eugenie. In defense, Paris has even denied her presence at the party.