In late January, MTV announced it had sold 2.5 million songs since the game's Nov. 20 release. The game now has more than 70 songs available for individual download.

Additionally, MTV will release a software update this week on all platforms that will allow gamers to buy new music from within the game itself. Currently, gamers who want to buy new songs for Rock Band must do so through either the Xbox Live Marketplace or the PlayStation Network. - more on this story

Preview and Purchase Rock Band CDs