Mayhem Festival 2012
Mayhem Festival 2012 was the fifth annual Mayhem Festival. Dates were announced on October 26, 2011.
== Mayhem Festival 2012 lineup ==
=== Main stage ===
Slipknot
Slayer
Motörhead
Rotating band slot
==== Rotating bands ====
Bands rotated between opening main stage and supporting Anthrax on Jägermeister stageThe Devil Wears Prada (June 30 – July 11)
As I Lay Dying (July 13 – July 24)
Asking Alexandria (July 25 – August 5)
=== Jägermeister stage ===
Anthrax
Lethal Dosage (Tucson local band)
Rotating band slot
Whitechapel
Upon A Burning Body (June 30 – July 11)
Betraying the Martyrs (July 13 – July 24)
I the Breather (July 25 – August 5)
Ventana (July 28) 
Silvertung (August 5)
Jägermeister Battle of the Bands Winner
=== Sumerian Records stage ===
Upon A Burning Body (July 13 – August 5)
I the Breather (June 30 – July 24)
Betraying the Martyrs (June 30 – July 11) (July 25 – August 5)
Dirtfedd
Sumerian Stage local Headbang for the Highway Battle of the Bands Winner (Thrown Into Exile – 6/30), (Karin Comes Killing – 7/4) (Depths of Mariana – 7/29), (Spiral Fracture – 7/29), (Eyes of Torment -  7/14)
== Dates ==