sentences:  As part of the Dalriada Festival, Glenarm Castle has started to host large outdoor concerts.As of 2012, it has welcomed artists like General Fiasco, The Priests, Duke Special, Ronan Keating, Sharon Corr, Brian Houston, David Phelps and the likes.Summer Madness, Ireland's biggest Christian Festival, moved from its annual residence at the Kings Hall, Belfast, to Glenarm Castle in 2012.