The main functions of a music video?

• The main purpose of a music video is to entertain their audience and therefore, allowing their fan base to grow so they can be more of a successful artist.
• It can promote the artists song and gain publicity through it, for example, the video "Gangnam Style" By PSI was successful from its music video.
• It will help the audience to understand the lyrics of a song if there was a music video to go with it.
• To increase sales of albums for the artist and Concert tickets
• The video will help to expand the artist's media platform, so the audience can watch it on e-media as well as seeing it broadcasted on television.
• Can be used to promote an artist, this is good for smaller artists that are just featuring in songs because it helps them grow a wider fan base.
•  The video helps to confirm the artist genre or show that there is a change in the genre for that artist, for example costume may change and therefore the artist will be promoting it.
• They can promote their other talents, for example if they can play the guitar they may be performing in music video. A good example of this is Ed Sheeran "Sing"