Get ready to rock, Portland! Mammoth NW is unleashing KOO KOO at the iconic Hawthorne Theatre on Saturday, September 6th, 2025, at 1:00 PM. This all-ages event welcomes music lovers of all kinds, with a bar available for those with valid ID. Brace yourself for an electrifying performance that promises non-stop energy and unforgettable moments. Note that all sales are final—no refunds or exchanges, folks! If you require ADA accommodations, be sure to reach out in advance. Mark your calendars and prepare to be part of something epic!