We might have done this before, Strummy will know  but I was just making a list (the evenings are long now)
 
In no particular order...
 
Steely Dan 
The Motors/Ultravox (with John Foxx)
XTC/Random Hold
Albert King/Eric Bell
The Reluctant Stereotypes
Level 42
The Vibrators
Lee Ritenour/Shakatak
Ultravox (with Midge Ure)
ABC
The Stranglers
Steel Pulse
The Photos
Bram Tchaikovsky
Al Jarreau/David Sanborn
Eater
Lonestar
Dr Feelgood
Peter Gabriel
Wang Chung
Big Country/The Lotus Eaters
Genesis
Jethro Tull
Willy Porter
Aly Bain & Phil Cunningham
Fairport Convention
ZZ Top/Bryan Adams/Thunder/Little Angels/The Law
Terraplane
Status Quo/Paul Rodgers
Paul Rodgers
Michael Ball
The Blues Band
Peter Green
Rush
Kate Rusby
Paul Carrack
Jools Holland Big Band
Del Amitri
John Martyn
Pink Floyd/Paul McCartney/Eric Clapton/Phil Collins/Genesis/Tears For Fears/Dire Straits/Elton John/Robert Plant/Cliff Richard (all at Knebworth 1990)
Wolfstone
Whitney Houston
Sting
AC/DC
Dougie McLean
Nine Below Zero
Mark Knopfler
 

Interesting one. Its going to take me a while.

Joni Mitchell (saw but unfortunately could not hear due to bad sound)
Bruce Springsteen (saw and heard but could not sit through because of overloud sound)
Grateful Dead (saw and heard but could not tolerate due to too much LSD (them) or not enough LSD (me)
 
That pretty much sums up my live pop music concert attendance. Recorded music rules.

These are all I can remember
 
Jethro Tull
Billy Joel
Paul McCartney
Seals and Crofts
Heart
Little River Band
Eagles
Elton John

The Cure
Spear of Destiny
James Brown
Prince (several times)
George Michael (solo - I know, I took a bird)
Eric Clapton
ZZ Top
Tom Jones
Lloyd Cole and the Commotions
Bruno Mars (with daughter - brilliant)
Imagination (don't laugh)
OMD
Robbie Williams (in his heyday - excellent live)
Deacon Blue
 
I'm sure there are more but can't remember right now - 2 trips to Glastonbury but don't remember much of the weekend if you know what I mean....

Steppenwolf - IGDV - my first.
Canned Heat, Crow, Redeye
Jethro Tull
John McLaughlin
Stanley Clark
Three Dog Night- heard probably 3 tunes...riot from being oversold. Got crazy.
Ten Years After
Edgar Winter - Johnny showed
ZZ Top
Led Zeppelin
Jim Croce
Marshall Tucker Band
Blue Oyster Cult
 
Seen quite a few not worth mentioning like Johnny Paycheck, Faron Young  etc. Lot of bands like that use to fill in for us when we took off.
 
these are the ones I remember right now...most of them I can't recall who was with them. Some I'll probably never remember due to....well it was the '70's.
Deep Purple cancelled...remember that. Pissed me off. Said the stage at the Tingley coliseum wouldn't hold them.
Missed Hendrix...I was sick- remember that.
 
 
Oh..Foghat     maybe more will come to mind lol
 
 

Martin Carthy
Johnny Winter
Jefferson Starship
Wilko Johnson
Hawkwind
Phil Campbell's All Stars
System 7
The Pretty Things
The Membranes
Television
Arthur Brown
The Jive Aces
Walter Trout
Gong
Prime Sinister
Nikki Hill
Nine Below Zero
Dave Edmunds
The Ukelele Orchestra of Great Britain
Bentley Rythm Ace
Here and Now
Pete Coe
The Sun Ra Arkestra
Tinariwen
The Fall

That's what I can remember for the last couple of years without thinking too hard. There's more than that, but I'm not going to write a book....

jamesg1213
We might have done this before, Strummy will know  but I was just making a list (the evenings are long now)
 
In no particular order...
 
The Motors/Ultravox
XTC/Random Hold
Albert King/Eric Bell
The Reluctant Stereotypes
Level 42
The Vibrators
Lee Ritenour
Ultravox
ABC
The Stranglers
David Sanborn
Steel Pulse
The Photos
Bram Tchaikovsky
Al Jarreau
Eater
Lonestar
Dr Feelgood
Peter Gabriel
Shakatak
Wang Chung
Big Country/The Lotus Eaters
Genesis
Jethro Tull
Willy Porter
Aly Bain & Phil Cunningham
Fairport Convention
ZZ Top/Bryan Adams/Thunder/Little Angels/The Law
Terraplane
Status Quo/Paul Rodgers
Paul Rodgers
Michael Ball
The Blues Band
Peter Green
Rush
Kate Rusby
Paul Carrack
Jools Holland Big Band
Del Amitri
John Martyn
Pink Floyd/Paul McCartney/Eric Clapton/Phil Collins/Genesis/Tears For Fears/Dire Straits/Elton John/Robert Plant/Cliff Richard (all at Knebworth 1990)
Wolfstone
Whitney Houston
Sting
AC/DC
Dougie McLean
Nine Below Zero
Mark Knopfler
 

Oh yes, I also saw Level 42 - forgot them. Ooh and Del Amitri.
I bet Jools Holland BB was good..

Metallica
Metal Church
Voivod
Alice Cooper
Nine Inch Nails
Them Crooked Vultures
Muse
Mötley Crüe (I know...)
The Cure
KISS
Marilyn Manson
Smashing Pumpkins (possibly the worst 2 hours of my life...)
King Diamond

I'm sure there are others I forget, and a bunch of acts nobody would have heard of outside Quebec.
 
That being said, I'm not a big fan of rock shows. I prefer to "hear the music" than to "live the excitement", and most rock shows are just too loud to really hear what's going on.
 

In no particular order. Bold = multiple times
 
Jimi Hendrix
Led Zep
The Chambers Brothers
Brian Auger & Trinity
Elvin Bishop Blues Band
Cat Mother and the All Night News Boys
Chicago
Jethro Tull
Yes
Wild Turkey
The Doors
Elton John
Bruce
John Hiatt
The Eagles
Marc Cohn
Sammy Haggar
Toto
The Brian Setzer Orchestra (Christmas Show)
Jesse Winchester
Ringo Starr's All Star Band (w/Jack Bruce)
Paul McCartney
The Rolling Stones
Blind Faith
Cher
Cyndi Lauper
Creedence Clearwater Revival
Edgar Winter
Bonnie Raitt
Little Feat
The Crash Test Dummies
Barenaked Ladies
Flo & Eddie
Lyle Lovett and His Large Band
Joe Ely
Pink Martini
West Bruce & Lang
Mountain
Chris Issacs
Jo Jo Gunn
The Fab Faux
Stanley Clark & George Duke
Joe Satriani
Free
Wayne Newton
Crosby Stills & Nash
Blood Sweat & Tears
Lee Michaels
Black Oak Arkansas
Black Sabbath
Leo Kottke
Lewis Black (comedian)
Dave Matthews 
Jason Mraz
Bob Dylan
The Who
Van Morrison
Robert Cray
Impaled
Neville Brothers
David Byrne
The Dave Clark Five ("appeared", and so I saw them live, at a theater in Chicago for the opening of their movie)
Linda Ronstadt
Maria Muldaur
Andres Vollenweider
Ambrosia 
The Moody Blues
Venice (The Lennon Brothers and Cousins)
Jean Luc Ponty
Eric Bib
The King's Singers
 
Non Performing Out (but SONAR Related)
Jonbouy (and The Mermaid)
SteveStrummerUK
Mooch4056 (Paul Anthony)
Philz
ohgrant
Jan(old55)
Randy P
Dave Carlson (quantumeffect)
Bitflipper
Julibee
Lance In The Studio
Middleman
Noel Borthwick
Seth Perlstein
Brandon
 
Probably more (especially openers I may not remember )