Rock Band Pulls Metallica Pack

Rock Band developer Harmonix, will not be releasing any DLC songs for its Rock Band series, and a couple of songs shall be disappearing from the library due to expired licenses. In an announcement earlier yesterday, Harmonix confirmed that they already have pulled Metallica Pack 1, which was originally released in 2007. Any users who already purchased the songs will not be affected. There is no confirmation to whether the licenses shall be renewed or not, and which other songs have their licenses close to expiring.