I know a lot of you are like who the **** are the Beatsteaks and wonīt even click this thread but I think you should listen to the following songs, itīs worth it.
To begin with, I tell you who they are. The Beatsteaks is a German band founded in Berlin who started with punk rock. However, with their last albums they went more in the alternative rock/rock genre. They are very successfull in Germany and unfortunately, only in Germany.
Most of their songs would be a great addition to Rock Band, their song Hand in Hand is a no brainer and would be all kind of awesome in a Germany DLC pack.
A three song pack with I don't care as long as you sing and Hello Joe would be even more awesome.
And they have so much awesome songs, you could even make a kickass 6 song pack:
Jane Became Insane
Demons Galore (guitar is so incredible in this song)
Hail to the Freaks
Hell, you could even make a 12 Song like The Who mega pack, although I must admit it would be way too much.
Make it (at least one song) happen, Harmonix