Guitarist Paul Kantner of Jefferson Airplane/Jefferson Starship is 70. Singer-songwriter Jim Weatherly is 68. Actor Patrick Duffy is 62. Actor Kurt Russell is 60. Actor Rob Lowe is 47. Singer Billy Corgan of Smashing Pumpkins is 44. Actor Yanic Truesdale (“Gilmore Girls”) is 42. Drummer Caroline Corr of The Corrs is 38. Actress Marisa Coughlan is 37. Rapper Swifty of D12 is 34.