Mayhem Festival 2009
Mayhem Festival 2009 was the second annual North American Mayhem Festival founded by Kevin Lyman. In July 2009 a DLC song pack was sold in the music video game Rock Band 2.
== Rockstar Mayhem Festival 2009 line up ==
Band lineup as released by the press release from the Mayhem Festival website and bands page of the Mayhem Festival website.
=== Main Stage ===
Marilyn Manson
Slayer
Killswitch Engage
Bullet for My Valentine
Mushroomhead (replace Bullet for My Valentine on 7/31 - 8/02) 
=== Jägermeister Stage ===
Trivium
All That Remains
God Forbid
Jägermeister Battle of the Bands winner (one per location):
=== Hot Topic Stage ===
Cannibal Corpse
Behemoth
Job for a Cowboy
The Black Dahlia Murder
Whitechapel
== Tour dates ==Mayhem Festival 2009 tour dates as seen on official website. Some dates that were originally seen on the press release have been removed with no explanation given.