Katie Holmes, actress and Bride of Scientology, turns 31 today. Hard-charging hedge fund manager Dan Loeb is turning 48. Brad Pitt turns 46. Steven Spielberg is turning 63. Christina Aguilera is celebrating her 29th birthday today. Dan Klores, the publicist turned documentary filmmaker, is marking his 60th. The head of the American Federation of Teachers, Randi Weingarten, is 52. Memorial Sloan-Kettering president (and Nobel Prize winner) Harold Varmus is turning 70. Troubled rapper DMX is 39. Keith Richards of the Rolling Stones is 66. Ray Liotta is turning 55. Model agency owner Faith Kates is 52. And former Miss USA Tara Conner is turning 24 today. A bunch of weekend birthdays is below.

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.