Harmonix has a contest out to win early access to the upcoming Soundgarden DLC. Here's the official post from Harmonix themselves and what six songs will be part of the pack:

"We told you we had more Soundgarden coming to Rock Band and now we have an exciting opportunity for Soundgarden and Rock Band fans. This week you'll have a chance to win the entire Soundgarden pack before you can buy it. Be the first of your friends to play the new DLC!

To enter the giveaway, follow @RockBand on Twitter and tweet with the hashtag "#SoundgardenRB". That's it! You can tweet anything - tell us your favorite Soundgarden song or the first time you saw Soundgarden live. Just be sure to include that hashtag to be entered to win! Entry period closes at 11:59 PM EST on July 12th.

Prize includes one Xbox 360 DLC code to download the Celebrating Soundgarden on Tour 2011 Pack, which includes the following songs:

• "Blow Up the Outside World"
• "Burden in My Hand"
• "Fell on Black Days"
• "Outshined"
• "Rusty Cage"
• "The Day I Tried to Live"

Prize does not include Pro Guitar upgrades, but several will be available on July 19th.

Good luck! Winners will be picked on July 13th, allowing winners plenty of time to play the tracks before everyone else can! Enter today and stay tuned for more giveaways!

For official rules, please click here. To discuss this giveaway, visit the official discussion thread."

Hey, The Day I Tried To Live is in there. That's a good song I guess, not sure about the rest :|

I love Soundgarden! 
 
I'm actually pretty bummed that Spoonman (and Black Hole Sun) wasn't supported in RB3. 
 ... Guess I'm hoping for a re-release of at least Spoonman. That song is hella fun on drums.

Love Soundgarden. GLAD TO SEE ITS NOT SOME RAP OR POP SHIT.

@EvilDingo said:

@SMTDante89: Aw man... these songs are hard as hell on drums! :-) It's all right though.I just returned to Rock Band 3 after a while, and was reminded that this pack had hit the store - so I bought it being a long time fan of Soundgarden. Every single song in this pack is only rated "moderate" on drums, so I feel that's a bit wierd. Granted it is not the" busiest" drum-track - but they have... erm... strange patterns. "Blow up the Outside World" is pretty straight forward though. This is of cause also just first impressions - I may learn them.

Matt Cameron, dawg. :)

People still play Rock Band?

Matt Cameron, dawg. :)