Bands I've seen in no particular order

("+" indicates "more than"; "X" indicates "exactly" how many times I've seen them; no notation indicates once. Asterisks indicate those I've met, and hence refer to as my "close personal friends")

Phish 10+
Rolling Stones 5+
Grateful Dead 5+
Genesis 5+
Buddy Guy
John Lee Hooker
Spice Girls
Johnny Clegg* 4X
The Who
Edgar Winter
Janis Joplin (with Big Brother and the Holding Company!)
Big Brother and the Holding Company (post Janis)
Johnny A* 3X
Crosby, Stills & Nash
Bruce Springsteen
Peter Gabriel
Shawn Colvin*
Tom Petty and the Heartbreakers
Keb Mo* 3X
C & C Music Factory
Sonia Dada
Chuck Berry
The Band 3X
Leon Russell
Ravi Shankar
Natalie McMaster* 2X
Dandy Warhols
Randy Newman
James Gang
Three Dog Night
Robert Fripp (with Adrian Belew and Trey Gunn)
Adrian Belew
Laurie Anderson* 3X
James Brown
Gene Krupa
Joe "King" Carrasco and the Crowns
The Samples 3+
Frank Zappa
Paula Cole*
Roger McGuinn
Bruce Hornsby
Howard Jones
Squirrel Nut Zippers
Graham Nash*
Alice Cooper
Billy Bragg*
Canned Heat
Paul Butterfield Blues Band
Robert Palmer
Brian Setzer Orchestra
Bela Fleck
LL Cool J* (met, but never have seen perform)