 It became a major influence until the late 1960s when free jazz and fusion jazz gained ascendancy.The neo-bop movement of the 1980s and 1990s revived the influence of bebop, post-bop, and hard bop styles after the free jazz and fusion eras.Bebop style also influenced the Beat Generation whose spoken-word style drew on African-American "jive" dialog, jazz rhythms, and whose poets often employed jazz musicians to accompany them.