 Although the musical style originated in the late 1940s and was very popular in the 1950s, the term "doo-wop" itself did not appear in print until 1961, in "The Chicago Defender", just as the style's vogue was nearing its end.Though the name was attributed to radio disc jockey Gus Gossert, he did not accept credit, stating that "doo-wop" was already in use in California to categorize the music.