Singer Robert Plant (Led Zeppelin) is 66. Country singer Rudy Gatlin is 62. Singer-songwriter John Hiatt is 62. Actor-director Peter Horton is 61. Actress Joan Allen is 58. Rock singer Fred Durst (Limp Bizkit) is 44. Actor Misha Collins is 40. Actor Andrew Garfield is 31. Actor Brant Daugherty (“Pretty Little Liars”) is 29.