There are music videos which work out to miniature films.There are music videos which are nothing more than shots of the performer(s) at work.
There are music videos which are basically excuses to show a lot of skin.
And then there's this.
http://tvtropes.org/pmwiki/pmwiki.php/Main/SurrealMusicVideo
No one has any idea what the @#$% those are about.
Warning: there's a lot of links on that page. Watch all the ones you want to, but note any NSFW labels -- and how quickly your sanity erodes? Is not my problem.