Previous headline performers have included Patti Smith , Ray Davies of the Kinks , Mick Jones of The Clash , the actor Michael Sheen , the writer Caitlin Moran , the poet John Cooper Clarke , the comedians Harry Hill and Alexei Sayle , the painter Peter Blake etc .

Previous winners are also ineligible to compete Competition .

Previous geological instability at the old mine and a long record of safety violations for the mine 's owners , San Esteban Mining Company , had resulted in Causation a series of fines and accidents Catastrophe , including eight deaths Death , during the dozen years leading up to this accident Catastrophe .