Barack isn't the only one with a reason to celebrate today. Georgina Bloomberg, the daughter of New York's mayor, turns 26. Real estate developer Kent Swig is 48. Newsweek editor and CNN fixture Fareed Zakaria is turning 45. Famed cardiologist Valentin Fuster is 66. The Office's Rainn Wilson is turning 43. Bill Maher is 53. Director David Lynch is 63. James Denton is turning 46. Lorenzo Lamas is 51. Buzz Aldrin is turning 79. And Melissa Rivers, the daughter of Joan Rivers, is 41 today.

Kate Moss turns 35 today. Page Six's Richard Johnson is turning 55. Gourmet editor Ruth Reichl is celebrating her 61st. Republican fundraiser (and cosmetics company founder) Georgette Mosbacher is 62. Strokes guitarist Nick Valensi is turning 28. Dr. Laura Schlessinger is 62. And the singer Sade is 50. Weekend birthdays appear after the jump!

It's been a rough few months for designer Rachel Roy what with her husband Damon Dash's money troubles, but today she really does have a reason to break open the Cristal. It's her 35th birthday. Others blowing out birthday candles today: Actor Chad Lowe is 41. David Zaslav, the CEO of Discovery Communications, is 49. Advertising bigshot Linda Kaplan Thaler is turning 58. And nutty British royal Princess Michael of Kent turns 64 today.

Worst birthday ever: Embattled Citigroup CEO Vikram Pandit turns 52 today, although we're going to assume that whatever big party Swati Pandi had been planning is not going ahead as scheduled. Others celebrating: 60 Minutes' Andy Rooney is turning 90. Fox News anchor Shepard Smith is 45. The New York Times' Maureen Dowd is 57. Models Karen Elson and Angela Lindvall are both turning 30. Filmmaker Steven Soderbergh is 46. Cranky liberal Eric Alterman is 49. Venture capitalist (and babe magnet) Adam Dell is turning 39. Jason Bateman is 40. Dave Grohl is celebrating his 40th. LL Cool J is 41. Faye Dunaway is turning 68. And Ms. Kristin Cavallari is turning 22 today.

Author Jay McInerney turns 54 today. Nutty editor Atoosa Rubenstein is celebrating her 37th. Orlando Bloom is 32. Grey's Anatomy star Patrick Dempsey is turning 43. Grey's creator, Shonda Rhimes, is 39. Julia-Louis Dreyfus is turning 48. Former Citigroup CEO Charles Prince is 59. Former Hillary Clinton advisor (and now Citigroup exec) Lisa Caputo is turning 45. Socialite Renee Rockefeller is 41. And legendary American Idol reject William Hung celebrates his 26th birthday today.

Radio personalities Howard Stern and Rush Limbaugh don't have much in common, but they do share a birthday: Howard is 55 today, while Rush is turning 58. Others celebrating: CNN's Christiane Amanpour is 51. Kirstie Alley is 58. Amazon.com founder Jeff Bezos is 45. Badgley Mischka's Mark Badgley is turning 48. Chef Rebecca Charles is turning 55. Actor Oliver Platt is 49. New York City Councilman James Oddo is 43. Rob Zombie is 44. And Heather Mills turns 41 today.

Model Maggie Rizer is turning 31 today. Dave Matthews is turning 42. Times book critic Michiko Kakutani is 54. Hot 97 host Angie Martinez is 37. Internet tycoon Lockhart Steele is 35. Indie film honcho Michael Barker is turning 55. Earl Graves, the founder of Black Enterprise, is turning 74. Author Judith Krantz is 81. Singer Joan Baez is 68. And Kate Middleton, who stands to become a princess if Prince William ever pops the question, turns 27 today. Weekend birthdays—including that of Jared Kushner—after the jump!

Designer Carolina Herrera turns 70 today. Rock legend David Bowie is celebrating his 62nd. R. Kelly is 42. Baseball players Jason Giambi and Carl Pavano are 38 and 33, respectively. DJ Clue is 34. Sean Paul is turning 36. Wolfgang Puck is turning 60. Former Ford Foundation president Susan Berresford is 66. Composer David Lang is turning 52. And game show host Bob Eubanks is 71.

If Katie Couric seems a little less cheerful around CBS headquarters this morning, that's probably because America's sweetheart is turning 52 today. Others celebrating: Magazine mogul Jann Wenner is 63. Nicolas Cage is turning 45. CSI: Miami's David Caruso is 53. Kenny Loggins is 61. And Dustin Diamond, better known as Screech from Saved by the Bell, will turn 32 today.

Legendary financier Henry Kravis turns 65 today. This means he can now begin collecting full social security benefits, which he may very well need at the rate he's going. Also celebrating: Julie Chen, the Early Show co-anchor and wife of CBS chief Les Moonves, is 39. Director John Singleton is turning 41. British food critic/TV host Nigella Lawson is 49. Novelist E.L. Doctorow is 78. Trudie Styler, the wife of Sting, is 55. Actress Joey Lauren Adams is turning 41. And volleyball star-turned-model Gabrielle Reece is 39.

Heiress and social fixture Amanda Hearst turns 25 today. Charlie Rose is celebrating his 67th. Diane Keaton is turning 63. Fashion "expert" Steven Cojocaru is 44. Actor Robert Duvall is 78. Former Vice President Walter Mondale is 81. King Carlos of Spain is 71. Pennsylvania Governor Ed Rendell is turning 65. And Marilyn Manson is celebrating his 40th birthday today.

Christy Turlington celebrates her 40th today. Taye Diggs is turning 37. Kate Bosworth is turning 26. Former Times reporter Judy Miller is 61. Loews CEO Jim Tisch is 56. Restaurateur Michael Lomonaco is turning 54. Marshall Rose, real estate developer and husband of Candice Bergen, is 72. Actress Paz Vega is 32. Cuba Gooding Jr. is 41. Former House speaker Dennis Hastert is 67. And Michael Bloomberg's mother, Charlotte, celebrates 100 today. Weekend birthdays after the jump.

Diane von Furstenberg turns 62 today. Donald Trump Jr. is 31. Actress Bebe Neuwirth is 50. Anthony Hopkins is celebrating his 71st. Val Kilmer is 49. Legendary attorney Joe Flom is 85. Real estate mega-developer Ed Minskoff is turning 68. Donna Summers is 60. Author Nicholas Sparks is 43. Ben Kingsley is turning 65. Gong Li is 43. Aerosmith bassist Tom Hamilton is 57. And New Kids on the Block alum Joey McIntyre is turning 36.

Nightlife vet Amy Sacco turns 41 today. Strangely, Today show co-anchors Meredith Vieira and Matt Lauer happen to share the same birthday, too: Meredith is turning 55, while Matt is 51. Fox News' Sean Hannity is 47. Entertainment lawyer Allen Grubman (and the husband of Deborah and father of Lizzie) is 66. Tiger Woods is turning 33. Film director Bennett Miller is 42. Patti Smith is turning 62. WCBS political reporter Marcia Kramer is 60. Actress Eliza Dushku is 28. R&B singer Tyrese is 30. Comedian Tracey Ullman is 49. LeBron James is 24. Laila Ali is 31. Heidi Fleiss is turning 43. And New York County Clerk Norman Goodman—the man responsible for all those jury duty summonses—is 85.

Real estate marketer (and housing bubble emblem) Michael Shvo turns 36 today. Jude Law is 36 today, too. Paramount CEO Brad Grey is turning 51. Ted Danson is 61. Matrix director/writer Andy Wachowski is 41. Mary Tyler Moore is 72. Writer Paul Rudnick is 51. And actor Mekhi Phifer turns 34 today.

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.

It can't be fun to have your birthday fall on Christmas, although if you're Jewish—like youthful financier/media mogul Bruce Wasserstein who will be celebrating his 61st birthday tomorrow—we're not sure it matters much. Others who can proudly proclaim they were born the same day as Jesus: Republican sorcerer Karl Rove is turning 58. Helena Christensen will be 40. Annie Lennox is turning 54. Dido is turning 37. Jimmy Buffett will be 62. Literary agent Esther Newberg will be 67. And artist Louise Bourgeois will be celebrating her 97th birthday.

Carla Bruni Sarkozy is celebrating today—France's First Lady is turning 41. CBS chief Les Moonves is 60. Conservative coumnist Bill Kristol is 56. Soap star Susan Lucci is 62. Badgley Mischka's James Mischka is turning 48. Author Donna Tartt is 45. Literary agent Elyse Cheney is 41. Retired Army General (and one-time presidential candidate) Wesley Clark is turning 64. Rock star Eddie Vedder turns 44. And The Girls Next Door's Holly Madison is 29 today.

Diane Sawyer is two years away from officially becoming a senior citizen. It's her 63rd birthday today. Others celebrating on this chilly Monday: Chef Anita Lo is 43. Theater producer Daryl Roth is turning 64. Vanessa Paradis, the French singer/actress and longtime love of Johnny Depp, is turning 36. Ralph Fiennes is 46. Mia Tyler, the daughter of Steven and half-sister of Liv, is turning 30. American Idol winner Jordin Sparks turns 19. And Ali Lohan is 15 years old today.

Considering he's spent the last couple of days fending off accusations he's a slumlord, this probably won't be the most cheerful day for hotel/restaurant owner Eric Goode: He celebrates his 51st birthday today. Others born on the 19th of December: Jake Gyllenhaal is 28 today. Alyssa Milano is 36. Tyson Beckford turns 38. Lady Sovereign is turning 23. Criss Angel turns 41. And real estate developer Doug Durst is turning 64. Weekend birthdays after the jump.