Monster Hall Music June 12-14, 2025 is One of Central Wisconsin's Hottest Music Events and Marathon County's Best Summer Party! This Event will feature 27+ National, Regional and Local Bands on 2-Stages over 3 Days! Past bands have include bands such as Nonpoint, Josey Scott, Tantric, Bobaflex, Adema, Scotty Austin, REHAB, Green Jelly, Trapt and many more! This year's lineup will be an amazing 3-Days of Rock!