High Quality Content by WIKIPEDIA articles! The music of the United States reflects the country`s multi-ethnic population through a diverse array of styles. Among the country`s most internationally-renowned genres are hip hop, blues, country, rhythm and blues, jazz, barbershop, pop, techno, and rock and roll. The United States has the world`s largest music industry and its music is heard around the world. Since the beginning of the 20th century, some forms of American popular music have gained a near global audience.