Come the Rock n Roll 50s,  the KU KLUX KLAN had to get their biased behinds in on the censorship silly ship. They circulated a Flyer:

Help Save the youth of America. Don’t buy negro records.
The screaming, idiotic words and savage music is undermining the morals of our white youth. Call the advertisers of the radio stations who play this type of music and complain to them!