I saw 10 in top 40.
 
I agree Jymez, Pedro's head is prolly exploding now.

bapu
I saw 10 in top 40.
 
I agree Jymez, Pedro's head is prolly exploding now.

Looks like 8, because I walked out on the Rolling Stones! I never bothered with the top ten bands, kind of thing, as by that time, my head was too much into European stuff, and most of that top ten stuff is just not even in my collection.
 
If there were regrets, I missed Jethro Tull a couple of times, and Genesis, I gave up on, because I wanted to see them with PG and it did not happen. Other than that ... none of the bands really turns me on.
 
Here's a list of mine ... and I have to clean it up some more ... the ones together was a show with both bands.
 
Random Hold/Peter Gabriel
Stevie Ray Vaughn/Robert Cray
Status Quo/Mason Profit/REO Speedwagon/Brownsville Station/The Crow/Amboy Dukes/Ides of March/Ravi Shankar
Pink Floyd (x4)
Roger Waters 
Tangerine Dream (x4)
Hawkwind (x2)
YES (x2 if we use the current goings)
Roxy Music/Rare Earth/Robin Trower
Black Sabbath/Nazareth
Return to Forever (w/ JLPonty)
Zappa plays Zappa
Deep Purple/Leon Russell
Gong (x4)
Daevid Allen (Divided Alien in 1978/79 or so and University of Errors in 1998 or so)
Man
Alan Stivell
Herman and the Hermits/Blues Magoos/The Who
Nektar
Stix
Dream Theater/Queensryche/Fates Warning (thx Craig) (Dt x2)
Babe Ruth/Iggy and the Stooges
Charley Musselwhite
Richard Thompson
Firesign Theater
Porcupine Tree
Lana Lane and the Rocket Scientists/Per Lindh Project/Buckethead/Brand X/Magma/Bondage Fruit
Renaissance
Todd Rundgren
George Thorogood
The Moody Blues
Mississipi Charles Bevel/Chick Streetman
Anderson/Wakeman and Rabin
Steven Wilson
Damo Suzuki
PDQ Bach
Yehudi Menuhin and Ravi Shankar (East meets West)
Andres Segovia

Moshkito
Dream Theater/Queensryche/(always forget that 3rd band ... good, too!)

 
Fates Warning? 

Most of the usual suspects as above, so a few that others haven't mentioned and a few I did FOH*...
 
Motorhead
Girlschool
The Blockheads
Doro Pesch
Samson
Blackfoot
The Levellers
The Selector*
Bad Manners*
Farrell and Black*
UK Subs*
Spear of Destiny*
...
and many more.

Scrolled through some of these at lunch today.  Interesting to pair up folks I hear in the forum with the bands they've seen live.  Very cool.
 
For me....the ones I can remember at least.  I'm leaving off opening acts if I really didn't care about them. 
m = saw multiple times. 
Most between 1977 and 2003....just a handful since. 
Big misses (for me):  Joe Satriani (could have seen this year but don't prefer the current band), Al Dimeola (had ticket, show was cancelled).  Would have loved to have seen any 70's tour for.....Pink Floyd, Lynyrd Skynrd (sp??), Alice Cooper, Elton John.
Hoping to see:  Steve Steven solo (currently in Europe...hoping for US), Devin Townsend, Neal Morse Band, Steven Wilson.
 
Heart (my first concert, Little Queen tour...loved it!)
Boston
Rush..m
Ted Nugent
Van Halen
Chris Smither
Triumph
Foghat
Dream Theater
Steve Morse..m
Eric Johnson
Steve Vai
Queensryche
Saga
Jethro Tull..m
The Fixx---great live show, wasn't a massive fan but like them now
Moody Blues..m
Megadeth
Tommy Shaw
Billy Idol..m
Porcupine Tree..m
Kings X
Yes..m
Kansas..m
Styx
Alan Parsons Project
Judas Priest
Tempest
Robin Trower
Rossington Collins Band
Foreigner
Blackfoot
Molly Hatchet
Great White
Faith No More
Live
The Jay Rakes Band..m (local band, I took a few lessons from him in 2008)
The Tragically Hip
Little River Band
Rory Gallagher
The Flower Kings

Can hardly remember
 
Led Zepp... Knebworth '79 first weekend. Can't forget that.
Tangerine Dream, loadsa times.
Hawkwind
UFO (FFS)
Opeth
Porcupine Tree
Yes (2000 line-up only)
Rush
Motorhead (they always used to turn up at some festival or other)
Marillion
Ultravox
Cocteau Twins
Slipknot
Biffy Clyro
Mastadon
In Flames
Metallica
Amplifier
Bill Bailey
Chas and Dave
Ozzy
Korn
Rammstein
Five Finger Death Punch
Alice in Chains
Avenged Sevenfold
Status Quo
Sepultura
Alter Bridge
Skindred
Robert Plant (loads)
Page and Plant
Stone Sour
Iron Maiden
 
Got a headache... can't think of any more...

As you can see, my list is no where big as the rest of you, but these are what I can remember (there's a bunch more, but......):
 
Van Halen (many times)
Gypsy Kings
Def Leppard
Huey Kewis
Genesis
Megadeth (Slipknot opened)
Steve Vai
Robert Cray
Metallica
The Platters/Temptations
 
 
 
 

Oh, I forgot.
Jean Luc Ponty at a little club in the Cameron Village Underground, around 1977.

I've been somewhat limited in my "Big Name" shows....
Richie Havens
The Beach Boys (early/mid 80's version, just after Dennis Wilson died)
The Stray Cats
Wang Chung
Edie Brickell and New Bohemians
Grateful Dead (a couple times)
Bob Dylan
Youssou N'Dour
Phish
Craig Chaquico
Jethro Tull
The Tragically Hip
 
I know I'm leaving some out...but man, I cannot think of who they were, off the top of my head.
 

Yes
Moody Blues
Zeplin
Santana
Sabath
Wishbone Ash
Lee Micheals
BB King
Buddy Guy
Etta James
Jonny Lange
Al Green
Robert Cray
The Mavricks
The Grass Roots
Lynard Skynard
Allman Brothers
Fabulous Thunderbird
Boz Scaggs
Elton John
Michael McDonald