Alec Baldwin turns 51 today. Eddie Murphy is turning 48. Pop princess Leona Lewis is 24. Amanda Bynes is turning 23. 90210's Jennie Garth is 37. Mr. Las Vegas, Wayne Newton, is turning 67. Former ski champion Picabo Street is 38. Legendary actress Doris Day is turning 87. Actor David Hyde Pierce is 50. And Skid Row singer Sebastian Bach is 41. Weekend birthdays after the jump.