They are both failed wanna-be rappers. Look up Immortal Technique, Rakim, Notorious, Kurtis Blow, Eminem, DMX, and of course, Tupac, not today's morons.
The only contemporary rapper I like is Hopsin. He makes some good stuff. It's both funny and intelligent!
Here's a link:
http://www.youtube.com/watch?v=XY49E9fHfPc