What are some popular heavy metal rock bands?

Disclaimer: Listed below are a lot of nu-metal bands which are not widely considered true Metal by the majority of the Metal Community. Some are Awsome, some suck (escape the fate).

A day to remember .

Escape the fate .

Alesana .

Bullet for my valentine .

Atreyu .

SENSES FAIL .

Hawthorne heights .

Killswitch engage.

Scary kids scaring kids .

Avenged sevenfold .

AFI .

BRING ME THE HORIZON .

PARK WAY DRIVE .

DISTURBED.(the best)

System of a down .

Metallica.

Death.

8 foot sativa.

sinate.

Legacy of disorder.

Tainted.

Human.

Second gear grind.

World war 4.

DDD.

Arch enemy.

COB.

Turmoil.

Megadeth.

Slayer.

Testament.

Pantera.

Possessed.

Venom.

Emperor.

Immortal.

Divine Heresy.

Dawn of Azazel

Five finger death punch.

Dyers Eve.

Dimmu Borgir.

Opeth.

Gojira.

Trivium.

Machine Head.

Carnifex.

as blood runs black.

Slipknot

Godsmack

Judas Priest

Iron Maiden

Black Sabbath

Dio

Rainbow

Helloween

Overkill

Motorhead

Diamond Head

Anthrax

Manowar

Ozzy Osbourne

Warlock

Motley Crue

Poison

Vixen

Tesla

KISS

Guns n Roses

Quiet Riot

Whitesnake

Scorpions

Def Leppard

Dokken

Cinderella

W.A.S.P.

Bon Jovi