Psycho

Credits

• Andy Wallace
  mix
• Daron Malakian
  guitar, producer, vocal
• Darren Mora
  additional
• David Schiffman
  engineer
• Greg Collins
  additional
• John Dolmayan
  drums (drum set)
• Rick Rubin
  producer
• Serj Tankian
  co, keyboard, vocal
• Shavo Odadjian
  additional, bass guitar