Sometimes credited with founding the sound of hyperpop alongside SOPHIE, A.G. Cook began making waves in electronic pop music in 2013 when he founded the PC Music label. The PC Music label consists of himself, Hannah Diamond, Namasenda, QT, EASYFUN, and other hyperpop artists. Cook's music oscillates between soft, chill melodies that are contemplative and emotional to tracks and remixes that blow-up traditional pop-dance conventions. He often collaborates with Charli XCX, Danny L. Harle, SOPHIE, Umru, and Caroline Polachek.