I can think of one but how explicit the song is in doing so is debatable. It's by Montgomery Gentry and titled Some People Change. You can find the video on Youtube.

However, my wife tells me of other such songs. Garth Brooks's song We Shall Be Free is one, Martina McBride's Love's The Only House is another. So is Craig Morgan's song Almost Home. These songs support ideas the KKK hates. There might be more.