Sonisphere 2011, the first and only touring European metal festival returns in the following locations :
Sonisphere U.K. Knebworth on July 8-10, 2011
Metallica, Slayer, Megadeth and Anthrax will headline the Friday night at Knebworth.
Wacken 2011 will be held in Wacken in Schleswig-Holstein, Germany on August 4-6, 2011 .
Judas Priest, Ozzy Osbourne and Motörhead are among the bands that will perform at the Wacken 2011 festival.
Disturbed, Avenged Sevenfold and Stone Sour are among the bands that will perform at the Rockstar Energy Drink Uproar festival will be held in arenas and amphitheatres across North America.
Diamond Head, Blaze Bayley and Uriah Heep are among the bands that will perform at the Hard Rock Hell IV festival held at Pontins in Prestatyn, North Wales, U.K. on December 3-5, 2010.