research for music video : what is the main purpose of a music video ?

1) sell the song in a way that the audience can remember the song from the video.

2) To provide the viewer with a better understanding of the song so they engage with it both visually and audibly (this is achieved through a performance or a 'story' telling )

3)to entertain the viewer by highlighting the talents of the artist - dancing , singing , performing and physical appearance.

examples of some memorable music video's:

beyonce- love on top

rihanna- what's my name