Joan Rivers turns 76 today. Kanye West is 32. Actress Julianna Margulies is turning 43. TV host Maria Menounos is turning 31. Jerry Stiller is 82. Model Irina Lazareanu turns 27. Barneys fashion director Julie Gilhart is turning 51. CBS exec JoAnn Ross turns 56. Legendary artist LeRoy Neiman is 88. Tech pioneer Tim Berners-Lee is turning 54. Nancy Sinatra, the daughter of Frank, is 69. Tennis star Lindsay Davenport is turning 33. And former first lady Barbara Bush celebrates her 84th birthday today.