Graspop Metal Meeting 2015 have added Airbourne, A Day To Remember, Asking Alexandra, COUNTERPARTS, Der Weg einer Freiheit, FM, Hollywood Undead, Life of Agony, Marduk, Morgoth and Vallenfyre to their ever growing list of participants to their lineup. The event is held in Dessel, Belgium on June 19, 20 and 21, 2015