Arroyo Secodelic Festival takes place in Los Angeles, California from May 22-25, 2026, showcasing a diverse lineup of rock, alternative, garage, pop, and funk rock artists. The festival features notable headliners including legendary bassist Mike Watt, garage rock veterans Flamin Groovies, punk pioneers Adolescents, and psych rock outfit The Warlocks alongside rising acts like Death Valley Girls and Levitation Room. With 53 American artists spanning multiple generations of underground and alternative rock, the four-day festival offers an extensive exploration of the contemporary rock scene. The lineup includes established acts like Flat Worms and Toys That Kill performing alongside emerging bands such as Acid Tongue and Sun Atoms.

Arroyo Secodelic Festival is a regional four-day multi-venue festival.