Just in time for the holidays, Harmonix has announced the DLC for Rock Band, which will be out tomorrow…

Harmonix and MTV Games want you to ring in the holiday cheer with a
special Rock Band gift. For a limited time, fans and gamers can purchase tracks from platinum-plus-selling rock act 30 Seconds To Mars, pop-punkers All-American Rejects and Swedish new-wavers The Sounds at a special holiday price of $0.99 per song (80 Microsoft Points per track for Xbox 360).

Starting tomorrow, there will be a total of five new songs available.

They are:

"Attack" - 30 Seconds To Mars (from 2005’s A Beautiful Lie)
"The Kill" - 30 Seconds To Mars (from 2005’s A Beautiful Lie)
"Dirty Little Secret" - All-American Rejects (from 2005’s Move Along)
"Move Along" - All-American Rejects (from 2005’s Move Along)
"Song With A Mission" - The Sounds (from 2006’s Dying To Say This To
You)

Looks like I may have to purchase some Holiday cheer tomorrow…

Thanks EvilAngela!