SUMDAYZ Festival. Sumdayz Festival fills the gap for a modern European music festival proposing innovative events and promoting international, fresh emerging talent in music and the visual arts. Our mission is to create a recurring multi-genre music festival accessible to international guests that Italy has never seen before. Sumdayz will foster an experiential event that brings in the best DJs to Europe’s most iconic city, Rome. Our Vision: We believe passionately in the power of creativity & music to change people’s frame of mind and ultimately the world by encouraging social interaction and expression in this unprecedented time we live in.