While it's not really known who the leaker is or how he/she got the track list, but I think we can be fairly certain, nay ULTRA CERTAIN that the following 85 songs are indeed the real complete track listing for Activion's Guitar Hero 5:

3 Doors Down - "Kryptonite"
A Perfect Circle - "Judith"
AFI - "Medicate"
Arctic Monkeys - "Brianstorm"
Attack! Attack! UK - "You and Me"
Band Of Horses - "Cigarettes, Wedding Bands"
Beastie Boys - "Gratitude"
Beck - "Gamma Ray"
Billy Idol - "Dancing with Myself"
Billy Squier - "Lonely is the Night"
Blink-182 - "The Rock Show"
Blur - "Song 2"
Bob Dylan - "All Along the Watchtower"
Bon Jovi - "You Give Love A Bad Name"
Brand New - "Sowing Season"
Bush - "Comedown"
Children Of Bodom - "Done With Everything, Die For Nothing"
Coldplay - "In My Place"
Darker My Love - "Blue Day"
Darkest Hour - "Demon(s)"
David Bowie - "Fame"
Deep Purple - "Woman From Tokyo ('99 Remix)"
Dire Straits - "Sultans of Swing"
Duran Duran - "Hungry Like The Wolf"
Eagles Of Death Metal - "Wannabe in L.A."
Elliott Smith - "L.A."
Elton John - "Saturday Night's Alright For Fighting"
Face To Face - "Disconnected"
Garbage - "Only Happy When It Rains"
Gorillaz - "Feel Good Inc."
Gov't Mule - "Streamline Woman"
Grand Funk Railroad - "We're an American Band"
Iggy Pop - "Lust For Life"
Iron Maiden - "2 Minutes to Midnight"
Jeff Beck - "Scatterbrain"
Jimmy Eat World - "Bleed American"
John Mellencamp - "Hurts So Good"
Johnny Cash - "Ring of Fire"
Kaiser Chiefs - "Never Miss a Beat"
King Crimson - "21st Century Schizoid Man"
Kings Of Leon - "Sex on Fire"
Kiss - "Shout it Out Loud"
Love and Rockets - "Mirror People"
Megadeth - "Sweating Bullets"
Mötley Crüe - "Looks That Kill"
Muse - "Plug in Baby"
My Morning Jacket - "One Big Holiday"
Nirvana - "Lithium"
Nirvana - "Smells Like Teen Spirit"
No Doubt - "Ex-Girlfriend"
Peter Frampton - "Do You Feel Like We Do (Live)"
Public Enemy Featuring Zakk Wylde - "Bring the Noise 20xx"
Queen&David Bowie - "Under Pressure"
Queens Of The Stone Age - "Make it With Chu"
Rammstein - "Du Hast"
Rose Hill Drive - "Sneak Out"
Rush - "The Spirit of Radio (Live, 2008)"
Santana - "No One To Depend On (Live)"
Scars On Broadway - "They Say"
Screaming Trees - "Nearly Lost You"
Smashing Pumpkins - "Bullet With Butterfly Wings"
Sonic Youth - "Incinerate"
Spacehog - "In the Meantime"
Stevie Wonder - "Superstition"
Sublime - "What I Got"
Sunny Day Real Estate - "Seven"
T. Rex - "20th Century Boy"
The Bronx - "Six Days a Week"
The Derek Trucks Band - "Younk Funk"
The Duke Spirit - "Send a Little Love Token"
The Killers - "All the Pretty Faces"
The Police - "So Lonely"
The Raconteurs - "Steady As She Goes"
The Rolling Stones - "Sympathy for the Devil"
The Sword - "Maiden, Mother&Crone"
The White Stripes - "Blue Orchid"
Thin Lizzy - "Jailbreak"
Thrice - "Deadbolt"
Tom Petty - "Runnin' Down a Dream"
Tom Petty & The Heartbreakers - "American Girl"
TV On The Radio - "Wolf Like Me"
Vampire Weekend - "A-Punk"
Weezer - "Why Bother?"
Wild Cherry - "Play That Funky Music"
Wolfmother - "Back Round"

Guitar Hero 5 will come out 9-1-09 for the XBOX 360, PS3, Wii, and PS2. There is a guitar version but there is no full band kit, and all existing GH instruments will work. One of the new features allows any 4 instruments to be played at once, 4 guitars, 4 drum sets, whatever! Time will only tell if the above track list is true, but I'm ULTRA CERTAIN it is, if it's not right, I will allow all of our readers to prank call Brian Bentley