News correspondent Sam Donaldson is 80. Singer Bobby McFerrin is 64. Interscope Records head Jimmy Iovine is 61. Actress Alex Kingston is 51. Singer Lisa Loeb is 46. Actor Terrence Howard is 45. Keyboardist Rami Jaffee (The Wallflowers) is 45. Actor Johnny Knoxville is 43. Singers Benji and Joel Madden of Good Charlotte are 35. Singer LeToya Luckett (Destiny’s Child) is 33. Actress Thora Birch is 32.