David, you are missing the point. No one is saying all African Americans listen to the same type of music. What I am saying is, they should actually have a choice if they want to listen to actual R&B (not just hip-hop) on Phoenix radio whether it be old or new school. There is obviously some sort of market for it in Arizona or you wouldn't have acts such as: Floetry, Miguel, Charlie Wilson or Mint Condition doing shows at the celebrity theater or at casinos around the metro Phoenix area.
The problem is that a mass appeal format can not target just African Americans in Phoenix, and Urban AC is essentially always a format that gets 90% of its listeners from the Black community.
You could likely fill those venues if you brought in Ailee or Do Kyung-soo, but that does not mean a K-pop station would be successful in Phoenix.