Page "Disc jockey" Paragraph 33

In the 1950s, American radio DJs would appear live at " sock hops " and " platter parties " and assume the role of a human jukebox.

They would usually play 45-rpm records, featuring hit singles on one turntable while talking between songs.

In some cases, a live drummer was hired to play beats between songs to maintain the dance floor.

In 1955, Bob Casey, a well-known " sock hop " DJ, brought the two-turntable system to the U. S. Throughout the 1950s, payola continued to be a problem and one result of the payola scandal was tighter control of the music by station management.

The Top 40 format emerged, where popular songs are played repeatedly.