What is "ghostfest"

Ghostfest is an extreme metal and hardcore punk festival in Leeds, England that first took place at The Cockpit across two days in August 2005, returning in 2006. It brought together the best of the UK's underground metal and hardcore crop along with metal and hardcore bands from Europe and America. There was no Ghostfest in 2007, but it has returned every year since 2008, and has now become a household name on the European indoor metal and hardcore scene, growing to ten times its original capacity since its inception in 2005 and selling out nearly every year in advance.