Heiress and social fixture Amanda Hearst turns 25 today. Charlie Rose is celebrating his 67th. Diane Keaton is turning 63. Fashion "expert" Steven Cojocaru is 44. Actor Robert Duvall is 78. Former Vice President Walter Mondale is 81. King Carlos of Spain is 71. Pennsylvania Governor Ed Rendell is turning 65. And Marilyn Manson is celebrating his 40th birthday today.