Cityfile: New York's Most Notable and Influential

Happy Birthday | Adrian Grenier turns 33 today. Jessica Simpson is turning 29. City comptroller (and mayoral wannabe) William Thompson is turning 56. Former mayor David Dinkins is turning 82. Times film critic A.O. Scott is 43. Showtime chief Matt Blank is turning 59. Author and marketing guru Seth Godin is 49. Writer Alice Munro is 78. Actress Sofia Vergara is 37. Eunice Kennedy Shriver is turning 88. The Office's Phyllis Smith is 58. Socialite Lisa Anastos is 41. Anti-war activist Cindy Sheehan is turning 52. And Neil Tennant of the Pet Shop Boys is 55. Weekend birthdays below! More

The Friday Party Report | The Four Seasons celebrated its 50th anniversary last night and a predictably large crowd of media personalities, politicos, and powerbrokers turned out for the occasion. Just a few of the people on hand to celebrate the event with co-owners Julian Niccolini and Alex von Bidder (left,  Erin Fetherston): Barry Diller, Nicole Miller, Ralph Lauren, Mort Zuckerman, Ray and Veronica Kelly, Arthur Sulzberger Jr., David and Joyce Dinkins, Henry Kissinger, Aby and Samantha Rosen, Dolly Lenz, Tim and Nina Zagat, Steve Schwarzman, Fern Mallis, Jay McInerney, Jeffrey and Linda Chodorow, Steve Newhouse and Gina Sanders, Albert Maysles, Ruth Reichl, Robert Burke, Linda Fargo, Star Jones and Herb Wilson, Thom Browne, Don Marron, Drew Nieporent, John Gutfreund, Chuck Scarborough, Cindi Leive and Howard Bernstein, Terry Allen Kramer, Marjorie Gubelmann, Marina Rust Connor, and Salman Rushdie and girlfriend Pia Glenn. [PMc, Wireimage, NYO, Paper]

Dinkins Hospitalized | Ex-mayor David Dinkins is currently listed in critical condition after undergoing heart surgery this afternoon at New York Hospital to replace a damaged heart valve. But he's expected to make a full recovery and hopes to "get back on the tennis courts" in the near future. [Newsday]

At last night's opening night party for the New York City Ballet's David H. Koch Theater, guest of honor David Koch and wife Julia mingled with Candace Bushnell, Sarah Jessica Parker, Alicia Keys, Al Roker, Debbie Bancroft, Lisa Falcone, Mary Alice Stephenson, Alexandra Lebenthal, Zani Gugelmann, Annie Churchill, Peter Martins, Veronica Webb, Mark Indelicato, Blythe Danner, Valentino, Rachel Roy, Derek Lam, Peter Som, and Vanessa Williams, who all ate, drank, and danced to inaugurate the new Lincoln Center venue. [Wireimage, PMc, Style.com]More

Happy Birthday | 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.