After the huge success of 'Sonisphere' 2010, the world's only internationally touring festival moves forward with preparations for its third year. 'Sonisphere' Knebworth comes earlier in 2011, taking place from July 8th through to July 10th.

The first of the headliners can already be revealed. Iowa's favorite sons, SLIPKNOT will perform this summer at 'Sonisphere', including an exclusive UK performance at Knebworth. For more info on 'Sonisphere' 2011 please check this location.

Source: www.BraveWords.Com