A music superstar, an Oscar winner, and a tennis legend take over the Met Gala ... we don't know if there's a punchline yet -- because we'll have to wait and see what happens since Beyoncé, Nicole Kidman and Venus Williams have been named co-chairs of the event!
The three stars have been tapped to work with industry icon Anna Wintour -- who always heads up the annual fashion extravaganza -- on next year's edition of the event .