I saw Tony Levin perform a couple of times, first with Peter Gabriel and then with King Crimson. I think it was the Three of a Perfect Pair tour but not sure... all I remember is that I was off to the right of the stage so all I could see was Adrian Belew pogoing around on stage playing guitar... didn't know who he was but his behaviour didn't seem like what I expected from Robert Fripp. Right near the end (after Red IIRC) the guy who I had figured for a roadie sitting in the corner stood up briefly and I realized *that* was Fripp, not the guy bouncing around center stage
Levin was awesome in the Gabriel concert... played stick maybe on half or more of the songs, and the sound is just hypnotic.
EDIT -- hey, for anyone looking for things to do this summer :
Adrien Belew, Tony Levin and others touring and hosting a music camp 
