evolution of artist's image

For those of you considering a music celebrity or style of music for your Cross Media study then here's an interesting link to evolution of an artist via their album covers.  

How do these images represent Jay-Z?  
How do they link to [changing?] audience needs and expectations and the prevailing zeitgeist?
How do they construct his image and that of a rap star in general?
Does he lead the prevailing representations or reflect audience expectations?
Do any threads run through them that suggest enduring qualities of Jay-Z?

http://davisdnadesigns.com/jay-z-album-cover-evolution/