Blog kingpin Nick Denton turns 43 today. Adam Gopnik, New Yorker staff writer and author, is turning 53. Comedian Dave Chappelle is turning 36. Sirius CEO Mel Karmazin is 66 today. Funnyman Craig Kilborn is turning 47. Herb Allison, the former president of Merrill Lynch and now an Assistant Secretary of the Treasury, is 66. Nobel Prize-winning economist Harry Markowitz turns 82. Vince McMahon, the man who brought you professional wrestling, is turning 64. Actress Marlee Matlin is 44. Former governor, presidential candidate, and Fox News talking head Mike Huckabee is 54. Former US Senator Max Cleland is turning 67. Author Paulo Coelho is 62. Steve Guttenberg is turning 51. And acting legend Chad Michael Murray celebrates his 28th birthday today.