Rock music is a broad genre of popular music that originated in the United States in the late 1940s and early 1950s, developing into a range of different styles in the mid-1960s and later, particularly in the United States and the United Kingdom.
music also drew strongly from a number of other genres such as electric blues and folk, and incorporated influences from jazz, classical, and other musical styles. For instrumentation
Like pop music, lyrics often stress romantic love but also address a wide variety of other themes that are frequently social or political.