Sean Lennon turns 34 today. Sharon Osbourne is turning 57. Newly retired pro golfer Annika Sörenstam is 39. Former Senator Trent Lott is turning 68. Director Guillermo del Toro turns 45. Tony Shalhoub is 56. Jackson Browne is 61. John O'Hurley of Seinfeld and Dancing with the Stars is 55. Actor Brandon Routh is turning 30. C-SPAN founder Brian Lamb is 68. Singer-songwriter P.J. Harvey is 40. And Randy Spelling—son of Aaron and Candy and brother of Tori—turns 31 today. A few weekend birthdays are below.

Lift up your beer and make a toast: Mr. Mario Lopez is 35 today. Others celebrating on this Friday: Jets quarterback Brett Favre is 39. At the New York Times, Stefano Tonchi is 49 and Adam Nagourney is 54. Socialite Celerie Kemble turns 35. Artist Banks Violette turns 35. Cornell's Antonio Gotto Jr. is 73. Paper's Mickey Boardman is 42. And David Lee Roth is 54. Weekend birthdays after the jump.

Tony Gotto is the dean and medical provost of Weill Cornell Medical College. He's also a world-renowned researcher and a leading authority on cardiovascular disease.