Travis Tritt (1989-ish)
2 Live Crew and Marky Mark (go ahead, laugh, I was 10)
Fenix TX
Fastball
3 Doors Down
Vertical Horizon
Eve 6 (twice)
Good Charlotte (twice)
Stretch Arm Strong
MXPX
New Found Glory
Goldfinger
The Toasters
the late Chris LeDoux (four times)
Don McLean (a bitter angry old man who claimed "8 more songs like that one [American Pie] and I could have been Garth Brooks.")
The Monkees
Styx
The Elected
Azure Ray
Dillinger Escape Plan
Nightmare of You
AFI (which was hands down THE BEST SHOW EVER

)
I have also seen more country bands than I can count....We have this four day country festival every summer called Country Jam (they have one in Wisconsin too) and I went three summers in a row. Approximately 5 bands per day for four days three years in a row.....
And one month from today I am going to add All American Rejects to the list.