Cityfile: New York's Most Notable and Influential

Spotted | A pregnant Karolina Kurkova walking in Tribeca with fiancé Archie Drury ... Catherine Zeta-Jones taking her kids Dylan and Carys to Pier 59 where she was celebrating her birthday ... Jared Leto riding a bike in SoHo ... Kirsten Dunst walking downtown ... Jennifer Hudson leaving her hotel with husband David Otunga ... Sienna Miller signing autographs outside her new Broadway play, After Miss Julie ... Cynthia Nixon walking in SoHo ... Oprah sitting in the back of an SUV ... Whitney Port filming scenes for The City on Friday afternoon ... Matthew Broderick riding bikes with son James in the Village ... Jonah Hill hanging out with a friend downtown ... and Rihanna leaving dinner at the Spotted Pig, and then going to the 40/40 club. 

Spotted | Jared Leto going for lunch with Moby in SoHo ... Jennifer Hudson leaving her hotel ... Bar Refaeli shopping in SoHo ... Chanel Iman walking in Bryant Park ... Rihanna going to dinner at Philippe with her assistant ... Bill Clinton getting into an SUV after an appearance on the Daily Show ... Suze Orman walking in the street ... Taylor Swift leaving her hotel with her mom ... Leona Lewis walking in SoHo ... India Arie walking by herself ... Alicia Keys getting in an SUV after a night out ... and Sarah Jessica Parker and Kristin Davis leaving a trailer on the set of Sex and the City 2.

• The drama surrounding fashion's most famous headbutt continues: Kiefer Sutherland says he was "defending the honor" of Brooke Shields by attacking Jack McCollough, since Jack had knocked Brooke over and then failed to apologize. Brooke and Jack, however, say the push never even happened, and Kiefer was running around drunk and "looking for something to smack." The police are now investigating the matter, since apparently there aren't more important crimes to be tackling right now. [TMZ, TMZ, NYDN, P6]
• Anna Wintour and Rihanna were acting like old pals at a Costume Institute afterparty on Monday night, which certainly bodes well for Rihanna's chances of landing a Vogue cover in the future. [NYDN]
• Lindsay Lohan was supposed to chaperone her little sister to a party at LA's Roosevelt Hotel on Monday night, but ended up "getting up close and personal" with ex-boyfriend Jared Leto instead. [E!, P6]
• Casey Johnson, meanwhile, showed up to the same party and was overheard telling a friend that she and Courtenay Semel have broken up, again. [P6]More

Click through for more pics of some of the famous faces in the front row at Fashion Week over the weekend. More

Happy Birthday | Author/humorist David Sedaris turns 52 today. Jared Leto is 37. CNN's Candy Crowley is 60. AOL chief Randy Falco is 55. Senator Evan Bayh is 53. America's Most Wanted's John Walsh is 63. Chris Daughtry is 29. And record producer (and possible murderer) Phil Spector celebrates his 68th today. Weekend birthdays after the jump. More

• Ellen DeGeneres and Portia De Rossi officially tied the knot in front of 20 guests at their Beverly Hills home on Saturday, exchanging handwritten vows and Neil Lane rings. Ellen wore a pants suit; De Rossi opted for a Zac Posen gown. [NYP]
• Madonna spent her 50th birthday in London, attending Kabbalah sessions before having a small party at her London home. She then hit the clubs with 90 or so of her closest friends. [Mirror, Showbiz Spy]
• Did Hillary Clinton get facial fillers from a plastic surgeon earlier this month? [R&M]
• Republicans are having a tough time finding any celebrities to come to their convention. [R&M]