from hmxhenry on rockband.com:

Hey everyone,

Are you a fan of great progressive rock? Powerful vocal hooks? Awesome Rock Band gameplay for all instruments? Yes? Then have some Yes!

These five songs from English progressive rock band Yes together yield about 40 minutes of amazing gameplay! This pack is a must-have for fans of keyboard gameplay. Enjoy!

Available on Xbox 360, Wii and PlayStation®3 system (July 26th, 2011):

• Yes – “Heart of the Sunrise”
• Yes – “I’ve Seen All Good People” X
• Yes – “Owner of a Lonely Heart” X
• Yes – “South Side of the Sky”
• Yes – “Starship Trooper”

(These tracks will be available in Europe on PlayStation®3 system July 27th)

These tracks will be available for purchase as “Yes Pack 01” and as individual tracks on Xbox 360, PlayStation®3 system and Wii. Tracks marked with “X” will include Pro Guitar and Pro Bass expansions for $0.99 per song.

Price:

$8.49, £4.39 UK, €6.59 EU (680 Microsoft Points, 850 Wii Points) for “Yes Pack 01”
$1.99 USD, £.99 UK, €1.49 EU (160 Microsoft Points) per song
$2.00 USD (200 Wii Points™) per song
$0.99 USD (100 Wii Points/80 Microsoft Points), £0.59 UK, €0.79 EU per song for eligible Pro Guitar/Pro Bass upgrade

I didn't quote because it gets messed up for some reason. Great stuff next week. Yes is pretty awesome.

This is probably the most excited I've been for a pack in years. I'm a pretty regular Rock Band DLC customer but the joy of seeing five Yes songs is something I haven't felt since possibly that monstrous Who pack in 2008. With all these arcade games coming out though I haven't even picked up any of the Soundgarden stuff from last week so I'm falling behind. :( 
 
EDIT: Only thing that bums me out is I don't really like Owner of a Lonely Heart at all but it'd be kind of stupid to not get it with the pack since [1] it could be nice for the now-rare Rock Band parties and [2] the difference between buying the other four songs and buying the pack is 50 cents.

I wept. Literally.

@drhans: literally?

I am a happy bunny rabbit... Time to go practice on the black and whites to prep!

This is great...but I can't help but be disappointed that they ignored the extreme Rock Band community forum dominance of "Yours Is No Disgrace" before "Roundabout" was announced for the official RB3 tracklist. It was THE only song that had actual presence other than Roundabout; I can remember multiple Yes polls on the site that were something like 9 votes for Roundabout, 4 votes for Yours Is No Disgrace, and 2 or less for any other individual song.

Also a little disappointed in Heart of the Sunrise, and the double-choice of Owner of a Lonely Heart AND I've Seen All Good People. Would rather see the former swapped out for Disgrace, and one of the latter swapped out for Long Distance Runaround.

All said and done, though, I'll still totally download I've Seen All Good People and Starship Trooper day-one, and I couldn't be more psyched to have Starship Trooper.

Oh. My. GOD! *has convulsions due to over excitement, passes out*

@skrutop: LITERALLY.

I feel like the only person on the planet who doesn't know who Yes is :( 
 
Edit: They're on the disc? O_O

@sofacitysweetheart: Hand over your ears. You are no longer allowed to listen to music.

BUY THIS PACK! Played through them with some friends today. They're hard, but man they're so great.