Nothing …
i saw: Linkin Park,Prodigy,U2, Interpol, and Guns N’ Roses!
A Day To Remember
As I Lay Dying
All That Remains
August Burns Red
Bazooka Zirkus
Breed 77
Heaven Shall Burn
Ill Niño
In Flames
Killswitch Engage
Linkin Park
The Gost Inside
Times Of Grace
Trivium
Good Charlotte, Framing Hanley (x2) , BMTH,Asking Alexandria,BVB,The Blackout,MCR,Lostalone,Four Year Strong,The Wonder Years, Bless The fall,while she sleeps 
really want to see LP TT.TT
Green Day (x2), My Chemical Romance, Joan Jett & The Blackhearts and The Blackout :3
I saw Linkin Park, Blink 182, Angels & Airwaves, 30 Seconds To Mars, Placebo, The All-American Rejects, Guano Apes and some german bands like Die Toten Hosen, Wir sind Helden and Culcha Candela
Might forget some, I’ve seen a lot of bands live.
The Alan Parsons Project, The Fray, High School Musical the concert (being 11 and rich was awesome), Breaking Benjamin (x3), Seether (x3), Three Days Grace (x2), Flyleaf, Finger Eleven, Drowning Pool (x2), Godsmack, Theory of a Deadman, Motley Crue, Linkin Park (x2), The Bravery, Chris Cornell, Does it Offend You, Yeah?, Pendulum, All Time Low, The Maine, 3OH!3, Asking Alexandria, Black Veil Brides, Chiodos, Saosin, Abandon All Ships, D.R.U.G.S., Stone Sour, Halestorm, Disturbed, Bullet For My Valentine, Escape the Fate, Bad Religion, Rush, Lady Gaga, Semi-Precious Weapons,
God, I know there are more but my memory’s being stupid. If I think of more I’m editing this
LINKIN PARK
I’ve seen mostly country artists, but I have seen:
[list]
Allan Jackson
Le Ann Rhimes
Bryan White
Shania Twain
Toby Keith
Black Eyed Peas
Spice Girls
Christina Aguilera
[/list]
There are probably some others, there are free concerts on the St. Louis Arch grounds in the summer time, and my mom told me she was at a Billy Idol concert when she was pregnant with me.
Linkin Park(x4, 5 counting upcoming show)
Green Day(x2)
Styles Of Beyond
Pendulum
Prodigy
Metallica
The Police
Elvis Costello
Switchfoot
Lynyrd Skynyrd
Kid Rock
Blink-182
Dave Matthews Band(x2)
Godsmack
Fall Out Boy
All American Rejects
Atreyu
Goo Goo Dolls
Lifehouse
Weezer
Sublime with Rome
Seether
AWOHLNATION
Sum 41
VersaEmerge
Van Halen
the list goes on
Greenday, slipknot, trivium, coheed & cambria, killswitch engage, lacuna coil, disturbed, avenged sevenfold, stone sour, linkin park, all that remains, halestorm, hail the villain, five finger death punch, attack attack, and others i cant think of right now.
If i could see tool and ac/dc i’d be set
Linkin Park (x3), Limp Bizkit, 30 Seconds To Mars (x2), Funeral For A Friend. ugh I think that’s all.
Looking forward for Lupe Fiasco, Common, blink-182 & more LP/30STM
Well in Mexico we dont get to see as many bands ad people that luve somewhere else … but i’ve seen Metallica Evanescence ACDC and Audioslave to bame my favorite o.es
I went to A LOT of shows and festivais, so my list is quite big. here it goes:
30 Seconds to Mars 
Alex Band
All Time Low
Ash
Avenged Sevenfold 2x
Bag Raiders
Band of Horses
Banda Hóri
Britney Spears
brokeNCYDE
Bullet For My Valentine
Cage The Elephant
Capital Inicial 2x
Carahter
Cavalera Conspiracy
Cícero
Cláudia Leitte
Cobra Starship
Crashdïet
Crystal Castles
Elton John
Escape The Fate
Foo Fighters
Fresno 2x
Gloria 2x
Incubus
Jennifer Lopez
Joan Jett and the Blackhearts
Jota Quest
Katy Perry
Kelly Clarkson
Linkin Park
Luan Santana
Marcelo Camelo
Medulla
Michel Teló
Myiavi
NX Zero 2x
O Rappa
Paralamas do Sucesso
Paris Hilton
Peaches
Pixies
Queens of the Stone Age
Rahzel
Red Hot Chili Peppers
Rihanna
Simple Plan 2x
Seu Jorge
Skank
Snow Patrol
Stone Sour
The Black Angels
The Kooks
Titãs
TV on the Radio
Yo La Tengo
Aerosmith, Bon Jovi, McFly (3x), The Police, Jason Mraz, Red Hot Chili Peppers, Katy Perry, Cobra Starship, Chris Brown, Backstreet Boys 
2004
Charlie Brown Jr. live at Chimera Festival 2004
Linkin Park live at Chimera Festival 2004
2010
Cavalera Conspiracy live at SWU Festival 2010
Avenged Sevenfold live at SWU Festival 2010
Incubus live at SWU Festival 2010
Queens Of The Stone Age live at SWU Festival 2010
Pixies live at SWU Festival 2010
Linkin Park live at SWU Festival 2010
Tiesto live at SWU Festival 2010
2011
Avenged Sevenfold live in Rio de Janeiro, Brazil
Limp Bizkit live in Rio de Janeiro, Brazil
Gloria live at Rock in Rio IV
Coheed and Cambria live at Rock in Rio IV
Motorhead live at Rock in Rio IV
Slipknot live at Rock in Rio IV
Metallica live at Rock in Rio IV
Detonautas live at Rock in Rio IV
Pitty live at Rock in Rio IV
Evanescence live at Rock in Rio IV
System Of A Down live at Rock in Rio IV
Guns n’ Roses live at Rock in Rio IV
X live in Rio de Janeiro, Brazil
Pearl Jam live in Rio de Janeiro, Brazil
2012
David Guetta live in Rio de Janeiro, Brazil
Cage The Elephant live at Lollapalooza Brazil 2012
Foo Fighters live at Lollapalooza Brazil 2012
Tinie Tempah live at Lollapalooza Brazil 2012
Foster The People live at Lollapalooza Brazil 2012
Jane’s Addiction live at Lollapalooza Brazil 2012
Arctic Monkeys live at Lollapalooza Brazil 2012
Linkin Park live in Sao Paulo, Brazil
Linkin Park live in Rio de Janeiro, Brazil
Linkin Park, Poets of the Fall, Seether, 3 Doors down, Prime Circle, Anberlin, Middle Class Rut, Mikroboy, Good Charlotte
2010:
P.O.D - Linkin Park - Avenged Sevenfold - Queens Of The Stone Age - Incubus
2012:
3 Doors Down and soon Linkin Park
[quote=LP13413]1999
August 14 - Marshall Tucker Band, Gridley Paige
2000
August 24 - Oops…I Did It Again! Tour (Britney Spears)
2001
June 30 - Black & Blue Tour (Backstreet Boys, Shaggy)
2003
July 22 - Projekt Revolution (Originally the first scheduled date of the tour, April 8. Because of a snow/ice storm, it was forced to be postponed. With Linkin Park, Mudvayne, Cold and Jurassic 5)
2004
July 27 - Projekt Revolution (I only saw Linkin Park, KoЯn and Snoop Dogg)
November 5 - American Idiot Tour (Green Day, New Found Glory, Sugarcult)
2005
May 23 - Good Charlotte, Simple Plan, Relient K
August 3 - Never Gone Tour (Backstreet Boys, The Click 5, Kaci Brown)
September 2 - My family dragged me to see that year’s American Idol show
September 3 - I was dragged to see Hilary Duff
2006
July 9 - Colin Mochrie and Brad Sherwood
August 25 - Lewis Black
August 27 - Black Eyed Peas
2007
August 28 - Projekt Revolution (I had school that day and made it to the show for Linkin Park and My Chemical Romance)
2008
July 20 - Projekt Revolution (Linkin Park, Chris Cornell, The Bravery, Busta Rhymes, I missed Ashes Divide, Atreyu, 10 Years, Hawthorne Heights, I missed Armor For Sleep, and I saw Street Drum Corps during LP’s set)
2009
March 20 - Buckcherry, Avenged Sevenfold (with The Rev), Papa Roach, Burn Halo
2010
March 16 - Breaking Benjamin, Chevelle, Red, Thousand Foot Krutch
April 7 - KoЯn, Five Finger Death Punch, 2Cents (Janus played too, but unfortunately wasn’t able to see them)
2011
February 1 - Linkin Park (Meet and greet caused me to miss Pendulum and Does It Offend You, Yeah?)
May 28 - 5th Annual K-Rock Dysfunctional Family BBQ (Trapt, 10 Years, Boy Hits Car, D.R.U.G.S., Kopek, Drive A, Elephant Mountain, Caustic Method)
September 14 - The Big 4 (Metallica, Slayer, Megadeth, Anthrax)
2012 (so far)
January 30 - Rise Against, A Day To Remember, The Mezingers
May 8 - Rise Against, A Day To Remember, Title Fight[/quote]
Just adding to my 2012 list:
May 27 - 6th Annual K-Rock Dysfunctional Family BBQ (of the eight bands on the bill that day , I only saw 12 Stones, The Dirty Heads and Filter)
August 14 - Linkin Park, (depending on what time the meet and greet is) Incubus, MuteMath
August 17 - Linkin Park, Incubus, MuteMath
Just LP