Entourage hottie Adrian Grenier turns 32 today. Former mayor David Dinkins is 81. Jessica Simpson is turning 28. Gallerist Andrea Rosen is 46. Ex-Merrill Lynch CEO Stan O'Neal is 57. Times film critic Tony Scott is 42. Theater attorney Freddie Gershon will be 69. Web marketing guru Seth Godin turns 48. Social fixture Lisa Anastos is 40. And Jeffrey Greenberg, the former CEO of Marsh & McLennan and son of billionaire Hank, is 57.