Treefort Music Fest returns to Boise, Idaho from March 25-29, 2026, featuring an impressive lineup of over 530 artists spanning rock, pop, indie, alternative, and punk genres. Headliners include Father John Misty, Built to Spill, The Wonder Years, Spoon, L.A. Witch, Magdalena Bay, Duckwrth, and Machine Girl, alongside notable acts like San Holo, Citizen, Flipturn, and mclusky. The five-day festival showcases both established and emerging artists from the United States, Canada, Australia, United Kingdom, and other international locations. With its diverse genre focus and extensive artist roster, Treefort Music Fest offers music fans a comprehensive indie and alternative music experience in Idaho's capital city.