IGN has been kind enough to post the first 45 songs to be rockable in Rock Band when it releases in a little less than one month. There are still several that will ship with the game that are, as of yet, unannounced. This list also doesn't include any of the downloadable content that will stream out each and every week post launch.

If any of you remember, Guitar Hero II made a similar promise back when it was first announced for the Xbox360 and I believe a quote stating that it would have "the most downloadable content" may have come up.  Several months later we are up to a bunch of songs from the original Guitar Hero and maybe a few originals. I don't know, personally, I have been busy not paying $3 a pop for songs I could just get in the original.

What do you think of the songs? Lets get a little thing going here; list your most anticipated song (limit one) from each generation.  I'll go: Gimme Shelter, Ballroom Blitz, Should I Stay or Should I Go, Sabotage, Are You Gonna Be My Girl.

1960s

• Rolling Stones "Gimme Shelter"

• Aerosmith "Train Kept a Rollin'"*
• The Who "Won't Get Fooled Again"
• Boston "Foreplay/Long Time"
• Mountain "Mississippi Queen" (cover)
• The Police "Next to You"
• David Bowie "Suffragette City"
• Black Sabbath "Paranoid" (cover)
• Blue Oyster Cult "Don't Fear the Reaper"
• The Ramones "Blitzkrieg Bop"
• Deep Purple "Highway Star"
• KISS "Detroit Rock City"
• Molly Hatchet "Flirtin' With Disaster"
• The Outlaws "Green Grass & High Tides" (cover)
• Sweet "Ballroom Blitz" (cover)

• Rush "Tom Sawyer"*
• Bon Jovi "Wanted Dead or Alive"
• The Clash "Should I Stay or Should I Go"
• Faith No More "Epic"
• Pixies "Wave of Mutilation"
• R.E.M. "Orange Crush"
• Iron Maiden "Run to the Hills" (cover)

• Foo Fighters "Learn to Fly"
• Metallica "Enter Sandman"
• Nirvana "In Bloom"
• Stone Temple Pilots "Vasoline"
• Weezer "Say It Ain't So"
• Smashing Pumpkins "Cherub Rock"
• Radiohead "Creep"
• Beastie Boys "Sabotage"
• Hole "Celebrity Skin"
• Garbage "I Think I'm Paranoid"
• Soundgarden "Black Hole Sun"

• The Hives "Main Offender"
• Queens of the Stone Age "Go With the Flow"
• The Strokes "Reptilia"
• Jet "Are You Gonna Be My Girl"
• OK Go "Here It Goes Again"
• Nine Inch Nails "The Hand That Feeds"
• Yeah Yeah Yeahs "Maps"
• Red Hot Chili Peppers "Dani California"
• Coheed & Cambria "Welcome Home"
• Fallout Boy "Dead on Arrival"
• The Killers "When You Were Young"
• New Pornographers "Electric Version"

• Bang Camaro "Pleasure (Pleasure)"
• Twelve more yet to be revealed