Bill O'Reilly is celebrating his 60th today; we're counting on you, Keith Olbermann, to make sure O'Reilly's big day is a very special one. Fashion designer Karl Lagerfeld is turning 76. Just in time for Fashion Week, model Coco Rocha is turning 21. Movie director (and Madonna ex) Guy Ritchie turns 41. Ryan Phillippe is turning 35. Actor Colin Firth is 49. Golfing legend Arnold Palmer is 80. Aerosmith guitarist Joe Perry is 59. The Post's Keith Kelly is 55. And NYC nightlife veteran Tracy Westmoreland celebrates his 53rd birthday today.