Well, I'm not sure which musical giant you are quoting, Brucie, but...

In a book I have on African American music, there's an album cover with a photo of Johnny Otis and the caption underneath says "The King of Rock n Roll."

And then there's {King} Soloman Burke.

Not to mention Nat King Cole...

And Muddy Waters asserts that "I the king" in a number of his songs-but-sorry, you did limit this to Rock n roll, didn't you?

And as for the "James Brown shuffle", in spite of what the Hardest Working Man in Show Business, Mr. Dynamite, Soul Brother# 1 has done before during or since, he will always be remembered by me with gratitude for his 1968 record- "Black Is Beautiful:Say It Loud: I'm Black and I'm Proud."

People needed to hear that message then and still need to hear it now.