David Schwimmer turns 43 today. Sculptor Richard Serra is turning 70. Pat Buchanan is 71. Political author (and reformed right-winger) David Brock is 47. Nelly turns 35. Singer/songwriter k.d. lang is turning 48. Chris Walla, the guitarist from Death Cab for Cutie, is 34. Stefanie Powers, best known as Jennifer Hart from Hart to Hart, is 67. And Queen Sofía of Spain turns 71 today.