Early 1970s:
Earth, wind and fire opening for Led Zeppelin
Stevie Wonder opening for the Rolling Stones
Alice Cooper
Frank Zappa (numerous concerts–always great)
More recently: I will never pass up an opportunity to see the Violent Femmes, and I also LOVE Patti Smith live.
I’m glad to see so many of my other favorites showing up on this list. http://www.freewayblogger.com/
Are any of them hot? i always thought they sounded hot lol.
edit: i mean the girls of course…ahhh im regretting most of this post
I cant believe i missed them when they cruised through my town. Damn 21+ shows! 
In No Particular Order…(Part 1)
DEVO, The Palladium, NYC, 1979 (or 80)
Richard Hell and the Voidoids, CBGB, NYC June 1979
Johnny Thunders, Max’s Kansas City, NYC 1981
James Chance and the Contortions, Max’s Kansas City NYC, 1980
Public Image Limited, The Ritz, NYC (approx.1981)
Violent Femmes, Irving Plaza, NYC 1985
The Ramones, (some tiny Dive out on Long Island, early eighties)
Chris Knox, Fast Forward Low-Fi Festival, Netherlands, 1995
Sex Pistols (reunion tour) Zenith, Paris 1996
BB King, Nice Jazz Festival, 2002 (or was it 2001?)
There are more, lots more, but in my old age, I’ve become a bit forgetful. That’s why I’m calling it Part 1–soon I’ll remember all the ones I forgot to mention, and I’ll call those Part 2…
Oh, I did have tickets to see Elvis Presley at Nassau Colisium in 1977. But he died before the show happened.
Dead Kennedys
The Vandals
Stomp
Stan Ridgeway
Leo Kotkey
Bad Religion
NOFX
Flogging Molly
All in the bay area most at the Catalyst (santa cruz)
The Producers
Suessical the Musical
Fosse
The Turtles
The Aquabats
West Side Story
Lion King…
Basically any of the countless broadways that I have seen.
Best show, Reel big fish, Zebra head, and Homegrown (2001)
Best set of a band
Suicide Machines (pittsburgh 2002)
sick of change
active ingredients
spoken
project86
dogwood
the who
supertones
emery
philmore
war rocket ajax
mxpx
uplifted
wreckless abandoned
reliant k
unforsaken
dunamus
number one gun
zero theory
skillet
bleach
nifty tom fifty
noggintoboggan
pax217
april 6th
anguish unsaid
limoZeen!!!
thats just what i can remember off the top of my head. im sure theres more
I’m young, so I don’t have much under my belt, but uhhh…
–The Temptations (or what was left of them)
–Beatlemania (out in some random feild in the middle of nowhere with the words “let it be” etched into this huge hill behind us, and everyone playing frisbee and declaring that they are the walrus and "wooo"ing in the right places)
–The Flamingos (local ska band, not the original flamingos)
–EVERY TIP THE VAN SHOW I’VE EVER BEEN TO. EVER. Go check them out right now. they’re on purevolume.com/tipthevan They’re my friends and I love them to bits and they sound great and they’re all really, really… hot.
–Big D and the Kids’ Table
and all those friggin musicals. Esp. the Rocky Horror ones.
Woot, the Connecticut scene sucks ass, yeahhhhh!
Diehard uni: you’ve seen dead kennedys. insert teenage girl squeeling OMGWTFBBQ. I love you.
As far as performance goes, I’d have to say that Less Than Jake at Hershey was the best.
Andrew W.K. was the most fun though… it might not be the best music around, but standing onstage singing with the man was a blast. I’ve never been that wet from my own sweat and the sweat of others…
Doughty was great too, but no suprises there…
The Producers with Jason Alexander and Martin Short
They Might Be Giants 2000 (and 2001)
Beastie Boys.