Goodwin's theory discusses how music videos represent songs visually and promote artists. Music videos visually represent the structure, speed, and beat of songs through cutting footage to the tempo. They also represent an artist's style and brand. Music videos serve as advertisements that tell the story of the song through a narrative and performance element, with the artist as both performer and narrator. The primary purpose of music videos is to promote the artist by making them the star and giving them significant screen time to increase their profile and sales.