Boy Harsher is an American electronic music duo consisting of Augustus Muller and Jae Matthews, formed in 2013. The group is known for their dark, synth-driven sound that blends industrial, EBM, and coldwave elements, gaining recognition through releases like their 2020 album 'Lightless' and 2022 album 'Obsessive.' They have become notable fixtures in the underground electronic and industrial music scene.