A. G. Cook (born Alexander Guy Cook on August 23, 1990) is a British music producer, songwriter, and visionary behind the influential label PC Music. Renowned for his role in shaping the hyperpop genre, Cook's work is characterized by its fusion of experimental electronic sounds with mainstream pop sensibilities.

Cook's music is known for its maximalist approach, blending elements of pop, electronic, and experimental genres. His productions often feature high-pitched vocals, synthetic textures, and a playful yet avant-garde aesthetic. This distinctive style has been instrumental in defining the sound of hyperpop, a genre that challenges traditional pop norms