Beginning tomorrow, September 18, over 1,100 DLC tracks for Rock Band Blitz and Rock Band 3 will go on sale for 50% off. The sale includes single tracks, full albums, and song packs.

This sale will be in effect for the Wii, PS3, and Xbox 360 versions of the game. A list can be found on the Rock Band forums or through this PDF file, which includes the actual prices.