Liza Minnelli's creepy ex, concert promoter David Gest, turns 56 today. Sportswriter Mike Lupica is turning 57. Nation of Islam leader Louis Farrakhan is 76. Comedian Mort Sahl is 82. Model Laetitia Casta turns 31. Actor James Haven, the son of Jon Voight and brother of Angelina Jolie, is 36. Arizona Cardinals quarterback Matt Leinart is turning 26. Former NBC honcho Warren Littlefield is turning 57. Former MTV VJ Martha Quinn is 50. And Dr. Robert Jarvik—the artificial heart inventor who also appears in all those Lipitor commercials—turns 63 today.