It's a big birthday for Jennifer Lopez. She's celebrating the big 4-0 today. Other people who will be blowing out candles this fine Friday: Broadway star Kristin Chenoweth is turning 41. Anna Paquin is 27. Director Doug Liman turns 44. Director Gus Van Sant is turning 57. Billionaire investor Nelson Peltz is 67. Artist Alex Katz is turning 82. Senator Claire McCaskill is 56. Governor Charlie Crist of Florida is 53. Barry Bonds turns 45. Retired basketball stars Rick Fox and Karl Malone are turning 40 and 46, respectively. Michael Richards of Seinfeld fame is turning 60. Actor Dan Hedaya is 69. And Wonder Woman—actress Lynda Carter—celebrates her 58th birthday today. Weekend birthdays after the jump.

Two Seymours are celebrating today: Stephanie Seymour is turning 41; Philip Seymour Hoffman is turning 42. Woody Harrelson is 48. Daniel Radcliffe is 20. Don Imus turns 69. Michelle Williams of Destiny's Child is turning 29. Supreme Court Justice Anthony Kennedy turns 73. Local news anchor Kaity Tong is 60. Actress Stephanie March is turning 35. The New Yorker's Hendrik Hertzberg is 66. Estate jeweler Fred Leighton turns 77. LA Times columnist Joel Stein is turning 38. Slash from Guns N' Roses is 44. Marlon Wayans is 37. Interior designer David Kleinberg is 55. Country music star Alison Krauss turns 38. And Ms. Monica Lewinsky celebrates her 36th birthday today.

Josh Hartnett turns 31 today. Robin Williams is turning 58. Doonesbury creator Garry Trudeau turns 61 today. Defense attorney Ben Brafman is turning 61, too. Yankees star CC Sabathia is turning 29. Cat Stevens is 61. Comedian Jon Lovitz turns 52. Architect David Rockwell is 53. Music mogul Martin Bandier turns 68. Former PaineWebber CEO and now investor Don Marron is turning 75. Democratic lobbyist Bill Lynch is 68. Attorney Ken Starr is 63. Former U.S. Attorney General Janet Reno is turning 71. Actor Justin Bartha is 31. And model/actress Ali Landry turns 36 today.

Gisele Bundchen turns 29 today. Rocco Landesman, the Broadway mega-producer and nominee to be the next chairman of the NEA, is turning 62. Two prominent people at the New York Times are celebrating birthdays today: op-ed columnist Thomas Friedman is 56 and advertising columnist Stuart Elliott is 57. Developer Sheldon Solow is 81. Carlos Santana is turning 62. Omar Epps turns 36. Actress Sandra Oh is turning 38. Former U.S. Senator Larry Craig is 64. Composer Michael Gordon is turning 53. Aussie animal lover Terri Irwin is 45. Josh Holloway of Lost is turning 40. Former MTV VJ Simon Rex is 35. And Dancing With the Stars winner Julianne Hough turns 21 today.

Vanity Fair overlord Graydon Carter just turned 60, and his staff rewarded him with a positively Vanity Fair-ish birthday party! The highlight was sung to the tune of 'A Few of My Favorite Things'...

Will Ferrell turns 42 today. Actress Phoebe Cates is turning 46. Playwright Tony Kushner is 53. Violinist Pinchas Zuckerman is 61. Stewart Copeland, the drummer from The Police, is turning 57. Former U.S. attorney general Dick Thornburgh is 77. Doug Herzog, the TV executive who oversees Comedy Central and Spike, turns 50. WABC weatherman Bill Evans is turning 49. Author Michael Gross is 57. Pharmaceutical mogul Michael Jaharis turns 81. François Payard is 43. 90210's AnnaLynne McCord is 22. Former teen star Corey Feldman turns 38. And Ugly Betty's Mark Indelicato celebrates his 15th birthday today.

How has Arianna Huffington been spending her 59th birthday? She started the day in Greece before making her way to Croatia, reportedly aboard the Rising Sun, the 454-foot, $250 million yacht that is co-owned by billionaires David Geffen and Larry Ellison. [Gawker]

If you see Arianna Huffington today, don't forget to say "xronia polla." The pundit, author and Greek native is 59. Others celebrating today: Beth Ostrosky Stern is turning 37. Actress Diane Kruger is turning 33. Paul Sevigny is 38. Forest Whitaker is 48. Guitar legend Joe Satriani turns 53. David Easton, the prominent interior designer, is turning 73. Club owner Don Hill is 65. Real estate scion Dan Tishman is turning 54. Former wrestler (and governor) Jesse Ventura is 58. Actor Scott Foley is turning 37. Marky Ramone of The Ramones is 56. Brian Austin Green is 36. And Brigitte Nielsen celebrates her 46th birthday today.

It's a big day for Vanity Fair editor Graydon Carter: He celebrates his 60th birthday today! (Gifts, flowers, and cards can be directed to 4 Times Square, 22nd floor.) Others marking off another year today: hedge fund manager Phil Falcone (and the husband of Lisa Maria) is turning 47. Music impresario Tommy Mottola is 60. Movie mega-producer Scott Rudin is turning 51. Fellow film mogul Joel Silver is 57. Howard Lutnick, the CEO of Cantor Fitzgerald, is turning 48. Upper East Side plastic surgeon Sherrell Aston is 67. Actor Matthew Fox is turning 43. Tech luminary Esther Dyson is 58. Hudson News chief Jimmy Cohen is 51. Legal powerhouse Barry Ostrager is turning 62. Actor Harry Dean Stanton is 83. Interior designer Benjamin Noriega-Ortiz turns 53. Artist Lee Friedlander is 75. And actor Vincent "Big Pussy" Pastore celebrates his 63rd birthday today.

Harrison Ford turns 67 today. Stephen Glover, who you probably know by the name "Steve-O," is turning 35. Actor Robert Forster is 68. Patrick Stewart is turning 69. Writer/director Cameron Crowe is 52. DailyCandy founder Dany Levy is turning 37. Hedge fund manager Dinakar Singh is 40. Writer Dale Peck turns 42. Cheech & Chong's Cheech Marin is turning 63. And retired basketball player Spud Webb turns 46 today.

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!

Courtney Love turns 45 today. Tom Hanks is turning 53. Jack White is 34. Jimmy Smits is 54. Floyd Abrams, the famed First Amendment attorney (and father of Dan), turns 73. Author/neurologist Oliver Sacks is turning 76. Former defense secretary Donald Rumsfeld is 77. ACLU honcho Anthony Romero is 44. AIDS activist Mathilde Krim is turning 83. Architect Michael Graves turns75. Actor Chris Cooper is 58. Netscape co-founder Marc Andreessen turns 38. Author Dean Koontz is 64. Fred Savage of Wonder Years fame turns 33. Actress Kelly McGillis is 52. And OJ Simpson is celebrating his 62nd birthday behind bars today.

Kevin Bacon turns 51 today. Milo Ventimiglia of Heroes fame is turning 32. Beck is 39. Celeb chef Wolfgang Puck is 60. Real estate developer David Walentas is turning 72. Paul LeClerc, the president of the New York Public Library, turns 64. Hedge fund manager Dwight Anderson turns 41. Actor Billy Crudup is turning 41, too. Anjelica Huston is 58. Country singer Toby Keith is 48. Actor Jeffrey Tambor turns 65. Columnist-turned-author Anna Quindlen is turning 57. Actress Sophia Bush is 27. And singer Joan Osborne turns 47 today.

Ringo Starr turns 69 today. Fashion designer Pierre Cardin is turning 87. Figure skating champion Michelle Kwan is 29. Retiring WNBA star Lisa Leslie is turning 37. Author Zoe Heller is 44. FIT president Joyce Brown is turning 63. Comedian Jim Gaffigan is 43. D. Woods of Danity Kane is turning 25. Interior designer Sheila Bridges is 45. Actress Paul Deviq is turning 43. Shelly Duvall is 60. And Jessica Hahn, the former church secretary famous for her affair with televangelist Jim Bakker, turns 50 today.

50 Cent turns 34 today. George W. Bush, the 43rd President of the United States, is turning 63. Nancy Reagan is 88. Sylvester Stallone is turning 63. Actor Geoffrey Rush is 58. Former Mets manager Willie Randolph turns 55. Ex-Barneys CEO Howard Socol is 64. Brazilian model Caroline Trentini is turning 22. Robin Antin, the Pussycat Dolls founder and sister of hairstylist Jonathan Antin, is 48. And the Dalai Lama turns 74 today.

A roundup of people who will be celebrating their birthdays on Friday, Saturday and Sunday is below.

Lindsay Lohan turns 23 today. Larry David is turning 62. Singer Michelle Branch is 26. High School Musical star Ashley Tisdale turns 24. The chairwoman of the New York City Opera, Susan Baker, is turning 59. Nobel Prize-winning neuroscientist Richard Axel turns 63. Former New Hampshire governor John Sununu is 69. Former model Jerry Hall is 53. Retired baseball player José Canseco turns 45. And Imelda Marcos, the former First Lady of the Philippines, celebrates her 80th birthday today.

Liv Tyler turns 32 today. Indie singer-songwriter Sufjan Stevens is 34. Debbie Harry is turning 64. Fred Schneider of the B-52s is turning 58. Dan Aykroyd is 57. Pamela Anderson is 42. Renowned choreographer Twyla Tharp turns 68. Actress Claire Forlani is turning 37. Missy Elliott is 38. Former MTV VJ Hilarie Burton turns 27. Retired Olympian Carl Lewis is turning 48. And Corporal Max Klinger (Jamie Farr) celebrates his 75th birthday today.

Vincent D'Onofrio turns 50 today. Mr. Mike Tyson is turning 43. Italian fashion heiress Allegra Versace is 23. American Idol's Fantasia Barrino is turning 25. Lizzy Caplan of Mean Girls and True Blood is 27. Nightlifer Noel Ashman, the former owner of the Plumm, is turning 39. Famed conductor Esa-Pekka Salonen is 51. Matisyahu is 30. And actor/comedian David Alan Grier turns 54 today.

Actor and Celebrity Rehab alum Gary Busey turns 65 today. Producer Robert Evans turns 79. Comedian Richard Lewis is turning 62. Wendy Kopp, the founder of Teach for America, is turning 42. Top Silicon Valley venture capitalist John Doerr is 57. Web entrepreneur Scott Heiferman is 37. Colin Hay of Men at Work is 56. Race car driver Jeff Burton turns 42. Philadelphia mayor Michael Nutter is turning 52. And "Pussycat Doll" Nicole Scherzinger celebrates her 31st birthday today.