When it comes to Kanye West you either love him or hate him. There really doesn't seem to be any in between from my experience talking to folks. Personally, I think the guy is a musical genius and one of the greatest talents of our generations when it comes to mainstream music - right up there with Trent Reznor. That's just my opinion though. When it comes to his, or any other celebrities personal life for that matter, I could care less. Dude has never put out a bad album.
When it comes to MMA trailers, and little 30 seconds spots like the one below - music means everything. I could name about 20 Kanye songs and 20 more beats off the top of my head that would enhance any trailer that has to do with Anderson Silva. The two really are a perfect fit.
"I guess every superhero need his theme music."