From HMXcj on rockband.com:

Available on Xbox 360, Wii and PlayStation®3 system (October 18th, 2011):

• Coldplay – “Yellow” X
• Coldplay – “The Scientist”
• Coldplay – “Clocks” X
• Coldplay – “Fix You”
• Coldplay – “Viva la Vida”
• Coldplay – “Every Teardrop is a Waterfall”

(These tracks will be available in Europe on PlayStation®3 system October 19th)

The tracks will be available as “Coldplay Collection 01” and will be available for purchase individually 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:

$9.99, £4.99 UK, €7.99 EU (800 Microsoft Points, 1000 Wii Points™) for “Coldplay Collection 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

Dat's a lot o' Coldplay. I'll admit to snickering when Coldplay showed up in Guitar Hero, but with keys it totally makes sense. I'm not sure how they're going to chart "Viva La Vida," but my guess is that the strings will show up for guitar/bass. Personally I love to sing that song, but not enough to buy it. I think I remember how to play "Clocks" on a piano, so I might get that.

Gross.

Buying the whole pack, I like all of those songs a fair bit.

Life sucks... and then you get Coldplay DLC.

*shakes fist at Harmonix*

I might be down for some of these

Coldplay sucks.