Check out this clip from SIRE RECORDS' BODY OF WAR SHOWCASE at SXSW honoring TOMAS YOUNG and the release of his documentary sound track Body Of War: Songs That Inspired An Iraq War Veteran (Sire / March 18). Play below to witness Serj Tankian, Ben Harper, Billy Bragg and Tom Morello getting the crowd to jump in unison while singing "This Land Is Your Land!" Amazing!