J-pop, natively also known simply as pops , is the name for a form of popular music that entered the musical mainstream of Japan in the 1990s. Modern J-pop has its roots in traditional music of Japan, and significantly in 1960s pop and rock music. J-pop replaced kayōkyoku in the Japanese music scene.

Pop music is a genre of popular music that originated in its modern form during the mid-1950s in the United States and the United Kingdom. During the 1950s and 1960s, pop music encompassed rock and roll and the youth-oriented styles it influenced. Rock and pop music remained roughly synonymous until the late 1960s, after which pop became associated with music that was more commercial, ephemeral, and accessible.