Josh Hartnett is all grown up! The star of Pearl Harbor and 40 Days, 40 Nights (and former boyfriend of ScarJo), turns 30 today. Doonesbury creator (and husband of Jane Pauley) Garry Trudeau turns 60 today, as does defense attorney Ben Brafman. Robin Williams is 57. Architect David Rockwell will be 52. Music mogul Martin Bandier turns 67. Private equity investor (and former PaineWebber CEO) Donald Marron is 74. Democratic lobbyist Bill Lynch turns 67. And actor Justin Bartha, the former flame of Lydia Hearst and current boyfriend of Ashley Olsen, is 30.

Two members of the Gossip Girl gang are celebrating birthdays today: Chace Crawford is 23 and Kristen Bell is 28. Steve Forbes, who is not on Gossip Girl (but could very well be a fan? Steve?) turns 61 today. Brooklyn Museum director Arnold Lehman will be 64, New York's Adam Platt will turn 50, and Joe Torre will celebrate his 68th. Weekend birthdays: On Saturday, artist Marilyn Minter will be 60, Calvin Butts will turn 59, and ESPN's Stuart Scott will be 43. On Sunday, Gisele Bundchen will turn 28. Other birthdays on Sunday: the Times' Stuart Elliott, composer Michael Gordon, theater producer Rocco Landesman, and former VJ Simon Rex.

Publicist Peggy Siegal turns 61 today! She's as wrinkle-free as ever, isn't she? Other people celebrating themselves today: David Hasselhoff is 56. Phyllis Diller is 91. Donald Sutherland is 73. Defense attorney Peter Neufeld turns 58. Goldman Sachs banker Jack Levy is 55. Evan Chesler, the presiding partner at Cravath, Swaine & Moore, turns 59. And Linda Gibbs, who oversees the city's homeless shelters, foster care program, and the corrections department, turns 49 today.

Phoebe Cates, who made memorable appearances in Fast Times at Ridgemont High and Gremlins and later settled down with Kevin Kline and opened a boutique on Madison Ave., turns 45 today. Cheerful WABC weatherman Bill Evans turns 48. Author Michael Gross is 56. Former teen star Corey Feldman is 37. Will Ferrell is 41. Angels in America playwright Tony Kushner turns 52. And pharma billionaire Michael Jaharis is 80.

Fifty-eight years ago today, a baby named Arianna Stassinopoulos was born in Athens, Greece; these days you know the liberal-turned-conservative-turned-liberal as Arianna Huffington, the founder of The Huffington Post. Also celebrating on this 15th day of July: Paul Sevigny is 37. Actor Forest Whitaker is 47. The future Mrs. Howard Stern, "model" Beth Ostrosky turns 36. Don Hill is turning 64. Real estate scion Dan Tishman is 53. Interior designer David Easton is turning 72. And adman Mitch Oscar is 56. Most importantly, it's Brian Austin Green's birthday today, too. Be a little extra generous with your loose change if he's your barista today.

While the French and those who somehow love them celebrate yet another Bastille Day, July 14 has even more festive repercussions around Defamer HQ and Hollywood at large. To wit: Megaproducer/amateur publicist/career advisor Joel Silver was born on this day in 1952. The pride of South Orange, New Jersey, Silver made his first impact in 1970 as the co-creator of Ultimate Frisbee and never looked back. NYU Film School preceded his journey west, followed by an assistantship (and eventual partnership) with producer Lawrence Gordon and, before long, his own shingle — Silver Pictures, the epicenter of bullying, intimidation, projectile paperweights and bona fide blockbusters like Predator, Die Hard, Lethal Weapon and The Matrix. The flops came as well, including Hudson Hawk, Richie Rich and House of Wax — the latter of which is avenged in a little tribute video we cobbled together after the jump.

If you happen to work in the Conde Nast building, might we suggest stopping off at Graydon Carter's office to wish him a happy birthday? The Vanity Fair editor turns 59 today. He'll be so pleased to accept your good wishes.

The angelic, all-natural rapper Lil' Kim turns 33 today. Pulitzer Prize-winning author Jhumpa Lahiri is 41. Gossip Girl's Connor Paolo, aka Eric van der Woodsen, is 18. Reviled union chief Roger Toussaint is 52. Literary critic Harold Bloom is 78. Interior designer John Barman is 59. And former deputy mayor—and now Bloomberg LP president—Dan Doctoroff will be 50 today.

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.

The man who'd very much like to be the next mayor, grocery store magnate John Catsimatidis, turns 60 today. Also celebrating: Tom Hanks is 52, Courtney Love is 44, and Jack White is 33. Theater producer Ted Chapin is 58. Architect Michael Graves is turning 75. ACLU director Anthony Romero is 44. And Floyd Abrams, the legendary First Amendment lawyer and father of Dan Abrams, will be 72 today.

Kevin Bacon turns 51 today. The man who owns half of Brooklyn, real estate developer David Walentas, will turn 71. Heroes hottie Milo Ventimiglia is 31. Actor Billy Crudup (and the ex of Mary-Louise Parker and Claire Danes) is turning 40. Hedge fund manager Dwight Anderson is 40. And New York Public Library president Paul LeClerc is 63.

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America isn't the only one having a birthday this week. Last night, Lindsay Lohan — everyone's favorite freckle-faced, raspy-voiced, psychologically-damaged, naked-picture-taking, gossip-column-filling, potential-half-sister-having, secretly-lesbian actress — turned 22 years old. It's truly mind boggling to imagine she's that young. Lohan's got so many miles of bad road behind her that I pegged her for at least 35. But no, 22— only one year past the legal drinking age which she's certainly never adhered to. So, how did Linds celebrate this momentous occasion? By throwing an 80's-prom-themed bash at Teddy's in the Roosevelt Hotel, of course. Check in after the jump for more party deets than you can shake a stick at.

The world's most famous half-Puerto Rican/half-Jewish man with a moustache, Geraldo Rivera, will turn 65 tomorrow. Also celebrating on the fourth of July: Yankees owner George Steinbrenner, who will be 78 and playwright Neil Simon, who is turning 81. Other people celebrating birthdays over the long weekend: RZA, 50 Cent, Chuck Close, Matthew Barney, Chuck Klosterman, Edie Falco, and former Mets manager Willie Randolph.

Lindsay Lohan turns 22 today! You can party with her and Ms. Ronson tonight at Teddy's at the Hollywood Roosevelt Hotel if you're in LA, don't have anything better to do, and you're on the list, naturally.

Liv Tyler is getting back together with her husband and turning 31 today. Congrats all around. Also celebrating today: Indie musician Sufjan Stevens is 33. Famed choreographer Twyla Tharp is 67. Supa dupa fly rapper Missy Elliot is turning 37. And former SNL funnyman Dan Aykroyd is 56.

Moody Law & Order star Vincent D'Onofrio turns 49 today. Plumm owner Noel Ashman turns 38. Boxer Mike Tyson is 42. And American Idol's Fantasia Barrino (remember her?) turns 24.

Vera Wang turns 59 today. Fashion designer Norma Kamali is 63, Broadway producer Roger Berlind is 78, book editor Cindy Spiegel is 48, and Tobey Maguire is 33. On Saturday, scenester and rock star scion Alexandra Richards will turn 23. Editor Harry Evans will celebrate his 80th. Other people celebrating birthdays this weekend: Michael Cardozo, Wendy Kopp and Scott Heiferman.

Stock up on the dollar bills and head over to Scores: Lady-loving shortstop Derek Jeter turns 34 today. Also celebrating: Hip hop execs Irv Gotti and Steve Stoute are both turning 38. Daily News gossip Joanna Molloy turns 53. Legendary ad man George Lois is 77. And Jets quarterback Chad Pennington is 32.

Lauren Bush, the niece of the president and girlfriend of fashion scion David Lauren, is 24 today. Hope David got you something nice, hon! Warm birthday wishes to Desiree Gruber, uber-publicist, Project Runway exec producer, wife of Kyle MacLachlan, and dog fanatic. She's 41 today. Television chef Anthony Bourdain is 52. Director Sidney Lumet is 84. Gay activist Larry Kramer turns 73. And hedge fund manager Julian Robertson is 76.