I made a playlist of all the songs that have been confirmed to be in Guitar Hero 4: World tour. The list is only those reported by major sites like IGN, gameinformer, and 1UP. I did not include speculation or rumors just those confirmed, I'll be adding more as they become available.

You can listen to all the songs here. (As far as I know this site is legal if not I will remove the link)

http://www.playlist.com/node/44677633

EDIT: Songs on this playlist are all confirmed for GH:WT:  SO FAR 54 out of 84 are reported.

In Game Confirmed:

311 - "Beautiful Disaster" 
30 Seconds To Mars - "The Kill" 
Airbourne - "Too Much Too Young" 
The Allman Brothers Band - "Ramblin' Man" 
Anouk - "Good God" 
The Answer - "Never Too Late" 
At The Drive-In - "One Armed Scissor" 
Beastie Boys - "No Sleep Till Brooklyn" 
Beatsteaks - "Hail to the Freaks" 
Billy Idol - "Rebel Yell" 
Black Label Society - "Stillborn" 
Black Rebel Motorcycle Club - "Weapon of Choice" 
blink-182 - "Dammit" 
Blondie - "One Way or Another" 
Bob Seger & The Silver Bullet Band - "Hollywood Nights" 
Bon Jovi - "Livin' On A Prayer" 
Bullet For My Valentine - "Scream Aim Fire" 
Coldplay - "Shiver" 
Creedence Clearwater Revival - "Up Around The Bend" 
The Cult - "Love Removal Machine" 
Dinosaur Jr. - "Feel The Pain" 
The Doors - "Love Me Two Times" 
Dream Theater - "Pull Me Under" 
The Eagles - "Hotel California" 
The Enemy - "Aggro" 
Filter - "Hey Man, Nice Shot" 
Fleetwood Mac - "Go Your Own Way" 
Foo Fighters - "Everlong" 
The Guess Who - "American Woman" 
Hush Puppies - "You're Gonna Say Yeah!" 
Interpol - "Obstacle 1" 
Jane's Addiction - "Mountain Song" 
Jimi Hendrix - "Purple Haze (Live)" 
Jimi Hendrix - "The Wind Cries Mary" 
Jimmy Eat World - "The Middle" 
Joe Satriani - "Satch Boogie" 
Kent - "Vinternoll2" 
Korn - "Freak On A Leash" 
Lacuna Coil - "Our Truth" 
Lenny Kravitz - "Are You Gonna Go My Way" 
Linkin Park - "What I've Done" 
The Living End - "Prisoner of Society" 
Los Lobos - "La Bamba" 
Lost Prophets - "Rooftops (A Liberation Broadcast)" 
Lynyrd Skynyrd - "Sweet Home Alabama (Live)" 
Mars Volta - "L'Via L'Viaquez" 
MC5's Wayne Kramer - "Kick Out The Jams" 
Metallica - "Trapped Under Ice" 
Michael Jackson - "Beat It" 
Modest Mouse - "Float On" 
Motörhead - "Overkill" 
Muse - "Assassin" 
Negramaro - "Nuvole e Lenzuola" 
Nirvana - "About a Girl (Unplugged)" 
No Doubt - "Spiderwebs" 
NOFX - "Soul Doubt" 
Oasis - "Some Might Say" 
Ozzy Osbourne - "Crazy Train" 
Ozzy Osbourne - "Mr. Crowley" 
Paramore - "Misery Business" 
Pat Benatar - "Heartbreaker" 
R.E.M. - "The One I Love" 
Radio Futura - "Escuela De Calor" 
Rise Against - "Re-Education Through Labor" 
Sex Pistols - "Pretty Vacant" 
Silversun Pickups - "Lazy Eye" 
Smashing Pumpkins - "Today" 
Steely Dan - "Do It Again" 
Steve Miller Band - "The Joker" 
Sting - "Demolition Man (Live)" 
The Stone Roses - "Love Spreads" 
Stuck In The Sound - "Toy Boy" 
Sublime - "Santeria" 
Survivor - "Eye of the Tiger" 
System of a Down - "B.Y.O.B." 
Ted Nugent - "Stranglehold" 
Ted Nugent's Original Guitar Duel Recording 
Tokio Hotel - "Monsoon" 
Tool - "Parabola" 
Tool - "Schism" 
Tool - "Vicarious" 
Trust - "Antisocial" 
Van Halen - "Hot For Teacher" 
Willie Nelson - "On The Road Again" 
Wings - "Band on the Run" 
Zakk Wylde's Original Guitar Duel Recording

Songs Confirmed but unavailable for the playlist

Nuvole- Negroamaro                                                                                                                                                                  Aggro- The Enemy                                                                                                                                                                      Never Too Late- The Answer                                                                                                                                     Demolition Man- The Police                                                                                                                 
Beatsteaks - "Hail to the Freaks"
Hush Puppies - "You're Gonna Say Yeah"                         

Confirmed DLC (Not included in Playlist)

Death Magnetic Album- Metallica
Smashing Pumpkins Track pack- Everlasting Gaze, 1979, G.L.O.W (Unreleased single debuts as DLC)
Jimi Hendrix Track Pack- Foxy Lady: Little Wing

Cool, EILL check this out when i have time

Blink 182- Damnit
Foo Fighters- Everlong
Sublime- Santaria
Smashing Pumpkins- Bullet with Butterfly Wings

Sweetness.

Added a list of songs.

Dammit, Beat it, Misery Business, In the end

Great track list I can't wait for it to come out, add those songs along with the track editor you've got a great game.

I was sold on the first song you listed... I love 'Love Me Two Times'. It's great to see some Doors on there and I hope to see some more. 'Touch Me' or 'Peace FRog' would be a nice start.

Just an FYI, I program internet radio stations, including one based on Guitar Hero & Rock Band. You can hear all confirmed tracksfor RB2 & GHWT, as well as all downloadable tracks and every on disc track from all the GH games & RB. You can listen to them in itunes by looking at radio and clicking on the ROCK category and scrolling down to radioioGUITAR HEROES. Or go to www.radioio.com and look at ROCK. That way you can check out the music from all the games in one place.

Great...still, i hope they release the complete list soon. I wanna see some tool tracks in there. Laterallus, please!!!

Nice, cant wait to play dammit, and hot for teacher. And crazy train. And BYOB. Oh my good so many amazing songs, this game will be awesome. Too bad than will be relase almost at the same time than gow2. More than $200 in short time.