Adult contemporary (AC) is category of popular music catered to adult demographics, including record charts and radio formats that are focused on such music.
The exact assemblage of adult contemporary music has varied based on trends in popular music, but has usually encompassed songs within genres popular among audiences that had grown out of music that appeals more to youth and young adult audiences. Adult contemporary was originally established as a continuation of the easy listening and soft rock sounds from the 1960s and 1970s, usually focusing on songs with varying degrees of easy listening, pop, soul, R&B, quiet storm, and rock influence. In the 1990s, adult contemporary began to accommodate a hotter sound more inclusive of contemporary pop songs, and develop sub-categories devoted towards specific genres.