Singer Frank Sinatra Jr. is 69. Singer Rod Stewart is 68. Singer-keyboardist Donald Fagen of Steely Dan is 65. Actor William Sanderson (“Deadwood,” “Newhart”) is 65. Singer Pat Benatar is 60. Guitarist Michael Schenker (Scorpions) is 58. Singer Shawn Colvin is 57. Singer-guitarist Curt Kirkwood of Meat Puppets is 54. Singer Brad Roberts of Crash Test Dummies is 49. Actress Trini Alvarado is 46. Singer Brent Smith of Shinedown is 35. Rapper Chris Smith of Kris Kross is 34.