I met Billy Gibbons at a Houston Rockets game once. As a rule, I don’t get starstruck by anyone — but this was an exception. As a kid I loved “Eliminator” and Cadzilla and all the flash. Later, I got into the bluesier early records, like “Rio Grande Mud” and “Tres Hombres.” And of course, there’s always been The Beard. Happy 62nd, Billy. Don’t ever shave — I mean change.