Roadrunner United: Matt Heafy and Tim Williams perform Machine Head's "Davidian" with Logan Mader on guitar

Logan Mader, Adam Duce, Paul Gray, and Robb Flynn talk about learning other people's songs along with footage of Matt Heafy and Tim Williams singing Machine Head's "Davidian" in this Gauntlet exclusive. The Roadrunner United Concert DVD is in stores December 9th. All of the clips so far are available here.