Grey's Anatomy star Patrick Dempsey turns 44 today. The show's creator and head writer, Shonda Rhimes, is turning 40. Party-hopping author Jay McInerney is 55. Orlando Bloom is turning 33. Julia-Louis Dreyfus is 49. Former Citigroup chief Chuck Prince turns 60. Actress Penelope Ann Miller is 46. Former Seventeen editor Atoosa Rubenstein is 38. And season three American Idol reject William Hung turns 27 today.

Author Jay McInerney turns 54 today. Nutty editor Atoosa Rubenstein is celebrating her 37th. Orlando Bloom is 32. Grey's Anatomy star Patrick Dempsey is turning 43. Grey's creator, Shonda Rhimes, is 39. Julia-Louis Dreyfus is turning 48. Former Citigroup CEO Charles Prince is 59. Former Hillary Clinton advisor (and now Citigroup exec) Lisa Caputo is turning 45. Socialite Renee Rockefeller is 41. And legendary American Idol reject William Hung celebrates his 26th birthday today.

Chuck Prince is the former CEO of Citigroup. He was forced into retirement in November 2007.