Rock and roll music evolved in the United States during the late 1940s and 1950s, as a combination of African American blues, country, pop, and gospel music produced a new musical genre. Even as it captured the ears of the nation, rock and roll was the subject of controversy and contention. The music intertwined with the social, political, and economic changes reshaping America and contributed to the rise of the youth culture that remains a potent cultural force today. A comprehensive understanding of post-World War II U.S. history would be incomplete without a basic knowledge of this cultural phenomenon and its widespread impact. In this short book, bolstered by primary source documents, Mitchell K. Hall explores the change in musical style represented by rock and roll, changes in technology and business practices, regional and racial implications of this new music, and the global influences of the music. The Emergence of Rock and Roll explains the huge influence that one cultural moment can have in the history of a nation.