After last year’s beautiful edition, Once in a Blue Moon Festival is set to return once again. In late summer 2026, the festival returns to the atmospheric Zuiderparktheater in The Hague. On Friday, September 4 and Saturday, September 5, the boutique roots festival marks its fourth edition, featuring an exciting lineup that includes headliners The White Buffalo and The 502s. Guided by the motto "Live Music Is Better,” we celebrate the raw energy and authenticity of live performance at its very core.