Rock Band Unplugged tracks revealed in PTOM.

"Miss Murder" by AFI
"Gasoline" by Audioslave
"Show Me the Way" by Black Tide
"Less Talk, More Rokk" by Freezepop
"Mr. Brightside" by The Killers
"3s and 7s" by Queens of the Stoneage
"Chop Suey!" by System of a Down
"Rock Your Socks" by Tenacious D
"Kryptonite" by Three Doors Down
"Would?" by Alice in Chains
"What's My Age Again?" by Blink-182
"Painkiller" by Judas Priest
"The Perfect Drug" by Nine-Inch Nails
"Drain You" by Nirvana
"Buddy Holly" by Weezer
"Livin' on a Prayer" by Bon Jovi
"Message in a Bottle" by The Police
"ABC" by The Jackson Five
"Carry on, Wayward Son" by Kansas
"Pinball Wizard" by The Who
"Everlong" by Foo Fighters
"Alive" by Pearl Jam
"Where'd You Go?" by The Mighty, Mighty Bosstones

Only nine of the songs in the game will be PSP-exclusive at the get-go.

I saw this a while ago. Still cool though. And luckily us RB players will get the 9 exclusive tracks as DLC.

Only two songs really appeal to me. Would? and Rock Your Socks.