Musicians Boots Electric Boots Electric BRAD BRAD Dropkick Murphys Dropkick Murphys Eagles of Death Metal Eagles of Death Metal Heartless Bastards Heartless Bastards Hank May Hank May The Promise Ring The Promise Ring Producers Tony Hoffer Tony Hoffer Jacquire King Jacquire King Justin Meldal-Johnsen Justin Meldal-Johnsen