I joke, but I was a stuttering fanboy the first time I met DC Cooper.
No idea who that guy is, other than by name.
Couldn't tell you one song or what other bands he has been in, unless I had the desire to go to Metal Archives.
I know the Q (Sean Quigly) can't go by one day without telling someone that he played bongos for him at Prog power, or something like that.
The only musician I ever met who I was truly in awe of was Glen Danzig, but that was primarily because I never thought I would get the chance. As far as I know, he only has done signing sessions during one tour ever, and that was the Samhain reunion in 98 or whenever the heck that was. Granted, it really wasn't a fanboy moment since he really didn't speak a word to anyone.
I have met many bands and members, but never really anyone who I would hold to an idol like status, such as Dickinson, Halford, Lemmy, etc....
I did meet King Diamond once and he was cool as hell.