Guitar Hero: World Tour has announced the downloadable content for May. The game will be adding a free pack from Metal Blade/Ferret Records featuring music from The Devil Wears Prada, Unearth and Chimaira on May 7th.
On May 14th, the game will add Angels and Airwaves' "Everything's Magic" and May 21st will add In Flames' Disconnected. You can find the full list of releases here.