* SpecialGuest: Lots and lots:
** Burton C. Bell (Music/FearFactory) - vocals on "Eye for an Eye" (''Soulfly'')
** Dino Cazares (Music/FearFactory) - rhythm guitar on "Eye for an Eye" (''Soulfly'')
** Fred Durst (Music/LimpBizkit) - vocals on "Bleed" (''Soulfly'')
** DJ Lethal (Music/HouseOfPain, Music/LimpBizkit) - turntables on "Bleed" and "Quilombo" (''Soulfly'')
** Chino Moreno (Music/{{Deftones}}) - vocals on "First Commandment" (''Soulfly'') and "Pain" (''Primitive'')
** Benji Webbe (Music/{{Skindred}}) - vocals on "Quilombo" and "Prejudice" (''Soulfly'')
** Christian Olde Wolbers (Music/FearFactory, Vio-lence) - bass on "No" (''Soulfly'')
** Grady Avenell (Will Haven) - vocals on "Pain" (''Primitive'')
** Corey Taylor (Music/{{Slipknot}}, Stone Sour) - vocals on "Jumpdafuckup" (''Primitive'')
** Sean Lennon (son of Music/JohnLennon) - vocals and guitar/piano on "Son Song" (''Primitive'')
** Tom Araya (Music/{{Slayer}}) - vocals on "Terrorist" (''Primitive'')
** Cut Throat Logic - rapping on "In Memory Of..." (''Primitive'')
** Cristian Machado (Music/IllNino) - vocals on "One" (''3'')
** Billy Milano (Stormtroopers of Death) - vocals on "Molotov" (''Dark Ages'')
** Coyote - vocals on "Innerspirit" (''Dark Ages'')
** David Ellefson (ex-Music/{{Megadeth}}) - bass on "Riotstarter" (''Dark Ages'')
** David Vincent (ex-Music/MorbidAngel) - vocals on "Blood Fire War Hate" (''Conquer'')
** Dave Peters (Throwdown) - vocals on "Unleash" (''Conquer'')
** Greg Puciato (Music/TheDillingerEscapePlan) - vocals on "Rise of the Fallen" (''Omen'')
** Tommy Victor (Prong) - vocals on "Lethal Injection" (''Omen'')
** Travis Ryan (Music/CattleDecapitation) - vocals on "World Scum" (''Enslaved'')
** Dez Fafara (Music/CoalChamber, [=DevilDriver=]) - vocals on "Redemption of Man by God" (''Enslaved'')
** Jamie Hanks (I Declare War) - vocals on "Fallen" (''Savages'')
** Neil Fallon (Music/{{Clutch}}) - vocals on "Ayatollah of Rock 'n' Rolla" (''Savages'')
** Mitch Harris (Music/NapalmDeath) - guitar on "K.C.S." (''Savages'')
** Todd Jones (Nails) - vocals on "Sodomites" (''Archangel'')
** Matt Young (King Parrot) - vocals on "Live Live Hard!" (''Archangel'')
** Randy Blythe (Music/LambOfGod) - vocals on "Dead Behind the Eyes" (''Ritual'')
** Ross Dolan (Music/{{Immolation}}) - vocals on "Under Rapture" (''Ritual'')
** Mark Damon (Music/ThePrettyReckless) - saxophone on "Soulfly XI" (''Ritual'')
** John Tardy (Music/{{Obituary}}) - vocals on "Scouring the Vile" (''Totem'')
** Chris Ulsh (Mammoth Grinder) - guitar on "Spirit Animal" (''Totem'')