 Black and white young people both wanted to see popular doo-wop acts perform, and racially mixed groups of youths would stand on inner city street corners and sing doo-wop songs "a capella".This angered white supremacists, who considered rhythm and blues and rock and roll a danger to America's youth.The development of rhythm and blues coincided with the issue of racial segregation becoming more socially contentious in American society, while the black leadership increasingly challenged the old social order.