Seth Rogen turns 27 today. Actress Emma Thompson is 50. Jason Sehorn, the former NFL cornerback and husband of Angie Harmon, is 38. Olympic swimmer Dara Torres is turning 42. Songwriter Linda Perry is 44. Socialite Jamee Gregory turns 60. And Harry Potter star Emma Watson turns 19 today.

Prospects for ghost writers have suddenly improved as publishers scramble to sign up Olympic champions to write books about, presumably, focusing on your dreams and never giving up, no matter what. Michael Phelps' eight gold medals were topped off by a $1.6 million deal from Simon & Schuster for Built to Succeed, in which he'll "reveal the secrets of his success." Let's hope he can write as fast as he swims: according to the Post, the book is due on shelves in December. Meanwhile 18-year-old Russian gymnastics champion Anastasia "Nastia" Liukin (left) is in talks to write two books including, natch, an "inspirational memoir," for which she can draw on the journals she's sensibly been keeping in preparation for this very day.

Swimmer Dara Torres is 41. Another 20 of this year's American athletes in Beijing are 40 or older. Topping the list is 58-year-old John Dane III, the president of a boutique yacht-building firm who'll represent the U.S. in Star-class sailboat racing. The shift in Olympian age range comes partly from better science and technology for sports training and injury recovery. But there's a money angle: