What is good underground rock music?

What are some good underground Rock/Hard Rock/Screamo/Metal/Grindcore/Metalcore/Hardcore bands?

I dont know if its what you're looking for but saosin is really good.

nekromantix, the black rose phantoms, chiodos, aiden, gutteral secrete(I think thats how you spell it) koffin kats, resurex, atreyu, mad sin, stalin's war

um f*ck thats all I can think of right now

Saosin is a good band but im kind of looking for a band I've'e never heard of

Disturbed, Drowning Pool, System of a Down, Killswitch Engage, As I lay dying, Bullet for my valentine, Lamb of God, Atreyu, SLAYER

to add on to jellos his are great bands then theres... Flaw, Korn, Godsmack, Slipknot, Metallica, Iron Maiden, Nine Inch Nails... and many others lol

boys night out, Silverstein, static lullaby, underoath, funeral for a friend, Fall Out boy, As I lay dying, hopesfall, red jumpsuit apparatus, bullet for my valentine. There are many more.

otep - extremely good ( woman singer), king diamond - metal goth, infernal majesty - black metal at its best, drain sth, warlock,OVERKILL !!!- theres a few for you to start with.

Alexis on fire!

youll fall in love.

xoxo
sassysammy

Olivia and the Adventures from the Dead

http://www.oliviaolivia.org

Check it out

You have to try system of a down, disturbed, trivium, slayer and slipknot and try serj tankian (the lead singer of system of a down gone solo) and if you want something more punkish try sum 41, they are awesome!!!

BEANS

Aiden is My favorite also Atreyu Rocks too

'queens of the stone age'
they are bordering on underground unfortunately
fun mail me for suggestions on specific tracks or other bands