Music videos serve three core purposes: entertainment, sales, and brand image. Entertainment keeps audiences interested in the song. Sales allow artists to promote products for money. Brand image helps audiences understand the artist's style and persona. Broader purposes include reinforcing political/social views and creating synergy between the video and other projects like movies. Branding strategies aim to appeal to target audiences through how the artist presents themselves. Camerawork and editing techniques keep videos engaging, with close-ups focusing on emotion and dynamic camera movement energizing performances.