Not wanting to be left behind in the big game of announcing-your-2013-headliners-as-early-as-possbile, today Bloodstock Open Air confirmed that King Diamond will be headlining the Friday night of their festival next year. The King join the previously-announced quartet of Anthrax, Fozzy, Firewind and Accept over on the bill over at Catton Hall, which in 2013 takes place on the weekend of 08-11 August. Early Bird Weekend Tickets are on sale now for the bargain price of £100, so if you want to save a few quid for a new Merciful Fate t-shirt in time for next August, now would be a good time to cough up some cash.