Sonisphere is a hard rock and heavy beats festival taking place every year between June-August across different European countries. The festival was formed in 2009 and is promoted by K2 and Kilimanjaro Live.
In 2009, the festival took place at six venues and in 2010 and 2011, increasing to 11 venues. The length of the event varies year on year.
Top acts to have appeared include Metallica, Slipknot, Korn, Down, Lamb of God, Kamelot, Pendulum.