Dec 3, 2010 13:07 Knotisphere By Tom AylottDecember 3, 2010 by Tom Aylott Slipknot will headline one of the days of Sonisphere festival, which takes place 8-10 July 2011. Some more recent news articlesCounterparts announce EP, release new single 'Monument'William Ryan Key and This Wild Life announce co-headline tourThe Story So Far release new single
