Selma Blair turns 37 today. Frances McDormand is turning 52. Famed conductor (and Met artistic director) James Levine is 66. Real estate tycoon Jerry Speyer turns 69. Supreme Court Justice Clarence Thomas is 61. Dermatologist Nicholas Perricone is also turning 61 today. Jason Mraz is 32. American Idol's Randy Jackson is turning 53. Musician KT Tunstall is 34. The singer Duffy is turning 25. Writer/director Joss Whedon turns 45. Retired soccer star Zinedine Zidane is 37. And Vint Serf, the computer scientist you have to credit for the Internet, turns 66 today.