Get ready for a night of unforgettable vibes as Mammoth NW rolls into town with the electrifying OSO OSO. On Saturday, June 21, 2025, the Hawthorne Theatre transforms into a high-energy haven for music lovers 21 and over. Grab your crew, showcase that ID, and dive into a sonic experience that promises to resonate long after the last note. Keep in mind, ticket sales are final; no refunds or exchanges, so make that commitment! If you require ADA accommodations, don’t hesitate to reach out. Mark your calendars and prepare for a night of pure auditory ecstasy in the heart of Portland!