Andrew Goodwin's theory states that pop music videos are built around songs, with the singer serving as the narrator. The singer breaks the fourth wall by looking at the camera to involve the viewer. Pop videos rely on repetition of images that align with the structure and repetition in the song, as well as intertextuality by incorporating elements from other songs. According to Goodwin, pop videos should have a beginning and ending, often building to a climax or constant repetition before fading away.