Chandler's genre theory states that genres are based on set conventions that must be present for a work to be recognized as a particular genre. The theorist argues that music videos must strictly conform to genre conventions around themes, settings, characters, costumes, lighting, acting, makeup, props, and form/structure in order for audiences to identify the genre. The document provides examples of how the music videos for "Focus" by Ariana Grande and "Super Bass" by Nicki Minaja conform to the conventions of pop and R&B genres respectively through their use of bright costumes, makeup, settings, and visual elements.