Identifying the Central Group of the Counterculture

The counterculture of the 1960s and 1970s in the United States encompassed a wide range of movements and ideologies that often opposed mainstream values. It was marked by a spirit of rebellion and a quest for alternative lifestyles, artistic expressions, and political activism. Individuals within this movement were influenced by various social phenomena, including civil rights struggles, anti-war protests, and the rise of new philosophies regarding personal and societal liberation.

Considering the impact of this era, which of the following groups is most recognized for explicitly promoting the rejection of conventional values through music and lifestyle choices during this period?