Onstage company
Documented collaborators
Guerrilla Fanfare is a high-octane brass-band ensemble rooted in Colorado's vibrant live scene. Formed in 2015 by sousaphonist Zach Brake, with key early contributions from Jesse Mathews, the group blends fiery pop arrangements, traditional jazz, and original material into show-stopping performances. Known for a signature two-drummers setup and an energetic stage presence, Guerrilla Fanfare has become a staple of Colorado venues and festival circuits.