(metalunderground) While the official announcement has yet to be made, initial details about the Rockstar Energy Drink Mayhem Festival 2011 are being reported around the 'net. Blabbermouth.net reports that Disturbed and Godsmack are rumored to be headlining this summer's touring festival, which will kick off in early July.

Here's the initial Rockstar Energy Drink Mayhem Festival 2011 lineup (more to be announced):

Main Stage:
DISTURBED
GODSMACK
MEGADETH

Rotating Opening Slot On Main Stage:
MACHINE HEAD
IN FLAMES
TRIVIUM

Second Stage:
SUICIDE SILENCE
UNEARTH
STRAIGHT LINE STITCH
ALL SHALL PERISH
KINGDOM OF SORROW

A tip we received also indicates that Red Fang will be part of the lineup.

A total of 13 acts are expected to appear on the bill.

The Rockstar Energy Drink Mayhem Festival 2011 tour dates appear to be:

Jul. 09 - San Bernardino, CA @ San Manuel Amphitheatre
Jul. 10 - San Francisco, CA @ Shoreline Amphitheatre
Jul. 12 - Seattle, WA @ White River Amphitheater
Jul. 13 - Boise, ID @ Idaho Center Amphitheatre
Jul. 15 - Phoenix, AZ @ Cricket Wireless Pavilion
Jul. 16 - Albuquerque, NM @ Hard Rock Casino Presents: The Pavilion
Jul. 17 - Denver, CO @ Comfort Dental Amphitheatre
Jul. 19 - St. Louis, MO @ Verizon Wireless Amphitheater
Jul. 20 - Cincinnati, OH @ Riverbend Music Center
Jul. 22 - Boston, MA @ Comcast Center
Jul. 23 - Montreal, QUE @ Parc Jean Drapeau
Jul. 24 - Hartford, CT @ The Comcast Theatre
Jul. 27 - Holmdel, NJ @ P.N.C. Bank Arts Center
Jul. 29 - Pittsburgh, PA @ First Niagara Pavilion
Jul. 30 - Washington, DC @ Jiffy Lube Live
Jul. 31 - Camden, NJ @ Susquehanna Bank Center
Aug. 02 - Virginia Beach, VA @ Verizon Wireless V. Beach Amphitheater
Aug. 03 - Raleigh, NC @ Time Warner Cable Music Pavilion at Walnut Creek
Aug. 05 - Chicago, IL @ First Midwest Bank Amphitheatre
Aug. 06 - Detroit, MI @ DTE Energy Music Theatre
Aug. 07 - Indianapolis, IN @ Verizon Wireless Music Center
Aug. 09 - Oklahoma City, OK @ Zoo Amphitheatre
Aug. 10 - Dallas, TX @ Superpages.com Center
Aug. 12 - Atlanta, GA @ Lakewood Amphitheatre
Aug. 13 - Tampa, FL @ 1-800-Ask-Gary-Amphitheatre
Aug. 14 - West Palm Beach, FL @ Cruzan Amphitheater

Please bear in mind, this is not yet official. The official announcement will be made on Monday, January 31st.

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