Cityfile: New York's Most Notable and Influential

Happy Birthday | Derek Jeter turns 35 today. Filmmaker Paul Thomas Anderson is turning 39. Patty Smyth is 52. Jason Schwartzman is turning 29. Music impresario Irv Gotti is 39. So is former music exec-turned-marketing honcho Steve Stoute. Joanna Molloy of the Daily News is 54. Art director George Lois is turning 78. Actor Sean Hayes is 39. Guitarist Mick Jones is turning 54. Chris Isaak turns 53. Chris O'Donnell is turning 39. Former Jets quarterback Chad Pennington is 33. And scandal-plagued quarterback Michael Vick turns 29 today. Weekend birthdays below.More

Today should be a busy day for thieves who earn a living robbing the homes of the rich and famous: Hundreds of celebs and corporate titans have been in Washington today for the inauguration and are expected to put in appearances at one of the many official and unofficial balls scheduled for this evening. Barack and Michelle will make their first stop this evening at the Neighborhood Ball, where the lineup includes Mariah Carey, Jay-Z, Beyonce, Alicia Keys, will.i.am, Stevie Wonder, Faith Hill, Shakira, and Mary J. Blige. The Equality Ball at the Mayflower Hotel will feature entertainment by Cyndi Lauper, Melissa Etheridge and Rufus Wainwright. Lou Gossett Jr. will serve as host at the Purple Ball, where performances by Il Divo and Peter Cincotti will entertain the likes of Tim Robbins and Susan Sarandon, John Cusack, Ed Harris, Ashley Judd, Patricia Arquette, Brendan Fraser, and Josh Lucas. More

♦  Michael Phelps is telling people he's single even though he's actually dating Miss California runner-up Nicole Johnson. [R&M]
♦  Peter Cook's interview with Barbara Walters airs on Friday, but Christie Brinkley's lawyers now say he violated a confidentiality agreement by speaking with the network. [OK!, ABC News]
♦  Hugh Hefner says his relationship with Holly Madison began to crumble six months ago when they found out his sperm count was too low to father any kids. Also, he's already auditioning new girlfriends. [E!]
♦  Anna Wintour's latest celebrity obsession? Gerard Butler. [P6]More