It seems like the DLC got announced a bit early. 
http://www.pastemagazine.com/articles/2011/01/london-calling-coming-to-rock-band-3.html?utm_source=twitterfeed&utm_medium=twitter    

Available on Xbox 360, Wii and PlayStation®3 system (Feb. 1):

· “London Calling” X
· “Brand New Cadillac”
· “Jimmy Jazz”
· “Hateful”
· “Rudie Can’t Fail” X
· “Spanish Bombs” X
· “The Right Profile”
· “Lost in the Supermarket”
· “Clampdown” X
· “The Guns of Brixton”
· “Wrong ‘Em Boyo”
· “Death or Glory”
· “Koka Kola”
· “The Card Cheat” X
· "Lover’s Rock”
· “Four Horsemen”
· “I’m Not Down”
· “Revolution Rock”

The album will cost $19.99 (1600 Microsoft Points), with individual tracks going for $1.99 (160 Microsoft Points) each. Tracks marked with “X” will include Pro Guitar and Pro Bass expansions for an additional $0.99 per song.

No Train in Vain? :(
 
I would like to play Spanish Bombs though. Best song on that album.

" No Train in Vain? "

Ok, Harmonix alone is coming very close to convincing me to update my PS3 so that I can use the store...
 
But goddamn it I've been on 3.15 this long. Its more punk to not update than it is to buy The Clash, so I hope they understand.

Way to alienate the people that supported them by making all the new DLC for only RB3.

" Way to alienate the people that supported them by making all the new DLC for only RB3. "

Not a big fan of the Clash, but London Calling is pretty sweet.

Lots of pro guitar in this one for those who have one.

This makes me ridiculously happy.  London Calling is one of my favorite albums of all time, and unlike The Colour and the Shape, pretty much all of it should be RB-friendly.

Yes! It took 2 fucking years but we finally get some more of The Clash.

Happy to see more Clash, but disappointed they went with London Calling.  I'm in the minority, though, so I'm not surprised.

Cool! I have very little knowledge of any of these tracks... but cool! 
 
@DukeTogo said:

" Way to alienate the people that supported them by making all the new DLC for only RB3. "

So happy this made it in!

" @FancySoapsMan said:

" No Train in Vain? "

Well, no RB3 version of it.  The song was released as DLC a couple of years ago. "