Great South Bay Music Festival returns to Patchogue, New York from July 23-26, 2026, featuring four days of rock, reggae, pop, and R&B performances. The festival lineup is headlined by The Used, Sublime, My Morning Jacket, and Gov't Mule, showcasing a diverse mix of alternative rock and jam band favorites. With 10 total artists performing across multiple genres including R&B/soul, the festival offers music fans in New York a comprehensive summer music experience. All featured artists hail from the United States, creating a celebration of American rock and alternative music traditions.