Hedge fund titan John Paulson is turning 54 today. Former Hollywood titan Michael Ovitz is turning 63. Tween queen Vanessa Hudgens turns 21. Novelist Benjamin Kunkel turns 37. Cliff Richards, the AC/DC bassist (and father of MTV's Erin Lucas), is 60. Writer Stanley Crouch turns 64. Child actress Patty Duke is 63. Aussie model/actress Sophie Monk is 30. Social fixture Eleanor Ylvisaker is 33. And Jane Birkin, the actress and singer who also inspired the Hermès bag by the same name, turns 63 today.