Will The Real Ray Charles Please Stand Up?

Or, at the very least, will Jamie Foxx please sit down?
I want to know wtf is up with Jamie Foxx. Sure, he won an Oscar for his portrayal of Ray Charles in Ray. Did I see it? No, because biopics aren't really my thing. The point is, the movie is over, and he can stop playing Ray Charles any day now. Why on earth is he collaborating with the likes of Kanye West and Ludacris singing hooks sampled from Charles' songs? I won't get into how "Golddigger" is a grand misappropriation of Ray Charles' "I Got A Woman," I'll just say this: there is (or was, anyway) only one Ray Charles, and it isn't this guy: