Too many favorites... Here's a sampling:
"The Talking Drum" by King Crimson
"Room A Thousand Years Wide" by Soundgarden
"The Illinois Enema Bandit" by Frank Zappa from
Live In New York 1976
"For Whom The Bell Tolls" by Metallica
"Blind" by Godflesh
"Sheep" by Pink Floyd
"A Growing Boy Needs His Lunch" by Dead Kennedys ("Let's Lynch The Landlord" and "Holiday in Cambodia" are other classics)
"Nebel" by Rammstein
"Are You Receiving Me?" by Golden Earring
"A Day In The Life" by The Beatles (best band ever IMO)
"London Dungeon" by The Misfits
"Astronomy" by Blue Oyster Cult
"Rainy Day Women #12 & 35" by Bob Dylan
"Barber of Seville" by Rossini (I like all the classical stuff used in cartoons
)
"Can't You Hear Me Knocking" by The Rolling Stones
"Freakin' At The Freakers Ball" by Dr. Hook and the Medicine Show
"I Feel Alright" by GBH
"Children of the Grave" by Black Sabbath
"Run of the Mill" by Judas Priest ("Some Heads Are Gonna Roll" is also excellent)
"Run to the Hills" by Iron Maiden
"Ashes to Ashes" by David Bowie
"Savage Messiah" by Arch Enemy
"Fire On High" by ELO
"Scumgrief (Deep Dub Trauma Mix)" by Fear Factory from
Fear Is The Mindkiller (This is a remix of "Scumgrief" from
Soul of a New Machine and quite excellent)
"North of the Border" by Killing Joke
"Fisticuffs" by Primus
"Won't Get Fooled Again" by The Who
"Rumble" by Link Wray
"Oye Como Va" by Santana
"Black Heart Romance" by My Dying Bride
"Beef Baloney" by Fear (one minute, 46 seconds worth of hilarity)
"You Know What You Are" by Ministry
"Desperate Cry" by Sepultura
"Mandatory Suicide" by Slayer
"Tales of Brave Ulysses" by Cream
"Bohemian Rhapsody" by Queen
"Cowgirl In The Sand" by Neil Young
I guess that's enough for now...