Four Year Strong, The Mars Volta, and More Added to Sonisphere UK
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrckFbcMfiCfJgv5iUhHSnS4ZnkBr0aish9fBk5hErqV6RDWDZzen6dynPar9Ip-20zhomNkSjvYRl2kC_I3RkD3VT6LQJZDPVhKk73sYhqVtup-KcBVM07wwemFzzF5GqEGfCZjVk4gI/s200/fys.jpg)
Four Year Strong, The Mars Volta, Opeth, Killing Joke, Rise To Remain, Six Hour Sundown, Black Dahlia Murder, Black Tide, Firewind and Watain have been added to the line-up for this year's Sonisphere Festival.