Tennis Hall of Famer Ken Rosewall is 91. Political commentator Pat Buchanan is 87. Olympic gold medal wrestler Bruce Baumgartner is 65. Singer-songwriter k.d. lang is 64. Playwright Lynn Nottage is 61. Actor David Schwimmer is 59. Jazz singer Kurt Elling is 58. Rapper Nelly is 51. Film director Jon Chu is 46.