@RockBand mentioned yesterday that we would be getting a nice little DLC announcement today, and here it is. Recently posted on RockBand.com and sent out from @RockBand, it appears that we will seeing DLC coming from the a number of heavily requested acts. A six pack of Soundgarden songs (most with Pro-Guitar upgrades) is on the way, along with a three pack of hair metal masters Poison. Also coming is one of Rock Band’s most requested bands Avenged Sevenfold, featuring one song from their latest album Nightmare, as well as a classic A7X track. Finally, we will be seeing two more songs from System of a Down, with one of those feature a Pro-Guitar upgrade.