5% of all radio airplay is Metallica songs.
Bands you should know of: Metallica, ACDC, Motley Crue, KISS, Guns N Roses, System of a Down...fuck it:
AC/DC
AFI
All-American Rejects
Alice In Chains
Amon Amarth
Anthrax
Apocalyptica
Atreyu
Ashes To Empire
Avenged Sevenfold
Black Sabbath
Blink 182
Blue Öyster Cult
Brand New
Breaking Benjamin
Bon Jovi
Boston
Buckcherry
Bullet For My Valentine
Chiodos
Crooked X
Crossfade
Crush 40
Disturbed
DragonForce
Dream Theater
Evanescence
The Fall of Troy
Finger 11
Fireflight
Five Finger Death Punch
Flyleaf
Fuel
Green Day
Godsmack
Good Charlotte
Guns 'N Roses
Hinder
Iced Earth
Iron Maiden
Journey
Judas Priest
Kansas
The Killers
KISS
Korn
Lacuna Coil
Led Zeppelin
Lifehouse
Linkin Park (pre-2007-2008)
Limozeen
Limp Bizkit
Mastodon
Matchbox 20
Megadeth
Metallica
Motley Crüe
Mott the Hoople
Nickelback
Nightwish
Nirvana
The Offspring
Ozzy Osbourne
Pantera
Papa Roach
Paramore
Pearl Jam
Pink Floyd
P.O.D.
The Postal Service
Puddle of Mudd
Queens of the Stone Age
The Red Hot Chili Peppers
Rise Against
Rush
Saliva
Saving Abel
Seether
Shine Down
Simple Plan
Sixx AM
Slayer
Slipknot
Skid Row
Staind
Sum 41
Sworn Rival
System of A Down
Theory Of A Dead Man
Three Days Grace
Trans Siberian Orchestra
Trapt
UnderOath
Van Halen
Weezer
Weird Al Yankovic
The Who







