Roi Arthur Festival takes place August 21-23, 2026 in Bréal-sous-Montfort, France, featuring a diverse lineup spanning pop, electronic, house, classical, and dance music. Headliners include Australian electronic artist Timmy Trumpet alongside French favorites MATMATAH & THE FUZZY BRASS FOUR, Louane, and Feu! Chatterton. The festival showcases 19 artists from France and Australia, offering everything from dance floor anthems to classical performances. Notable acts include Disiz, Jérémy Frerot, Yamê, and Trinix, creating a three-day celebration of international and French musical talent.