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David Bowie turns 63 today. Fashion designer Carolina Herrera is turning 71. Everyone's favorite British theoretical physicist, Stephen Hawking, is 68. Robert Kelly (or R. Kelly to you and me) is turning 43. Sean Paul is 37. Baseball players Jason Giambi and Carl Pavano are 39 and 34, respectively. Actress Sarah Polley is 31. Wolfgang Puck is turning 61. DJ Clue is 35. Susan Berresford turns 67. Composer David Lang is 53. And legendary game show host Bob Eubanks turns 72 today. A few weekend birthdays are below.

Saturday: Dave Matthews (43); model Maggie Rizer (32); Times book critic Michiko Kakutani (55); royal girlfriend Kate Middleton (28); radio host Angie Martinez (38); blog mogul Lockhart Steele (36); indie film honcho Michael Barker (56); Black Enterprise founder Earl Graves (75); author Judith Krantz (82); and singer Joan Baez (69).

Sunday: real estate scion Jared Kushner (29); rocker Rod Stewart (65); porn pioneer Al Goldstein (74); Pat Benatar (57); America's Next Top Model winner Saleisha Stowers (24); and boxer/kitchen appliance tycoon George Foreman (61).