"Hippie group" is "히피족"(hi-pi-jok) in Korean.
In culture that was popular in the late 1960s in the United States, that of people who are denied without being bound to the existing values and institutions, to advocate a return to the wild life. Such a thought was spread all over the world, but it is the same in Korea. By the influence of hippie culture, long hair group (in Korea 장발족 is the subject of) appeared seized.