Wow - thanks for the B.B. King video. Fun to see a couple of accomplished guys like that having so much fun!
Seriously though, you can tell that there is great respect between the two, although BB plays it up for the audience amusement as a comedic ruse, there is no doubt that BB respects Gary's talent. I just get a kick out of the whole thing, where Gary looks like he's trying to impress BB with zillions of gnat notes and BB just makes goofy faces before playing almost the exact same thing with more soul and far fewer notes. What it takes Gary 100 zillion notes to accomplish, BB gets the same thing with only 4 notes ;)