Hey Willy,
J.B. is playing the Garden Sept 13th(or 14th). He usually also plays in Camden in Aug., but it's a little like being in prison there, huge barbed wire fences all around, kind of depressing, definitely doesn't go with the whole Buffet thing. You should try to see him its quite an experience, I've seen him a bunch of times, even got to see him at Fenway two years ago, that was awesome.
KW