Noun
a musical style that emerged in the 1960s; rock music inspired by or related to drug-induced experience
Source: WordNetPsychedelic rock particularly took off in California's emerging music scene as groups followed the Byrds from folk to folk rock from 1965. Source: Internet
Psychedelic rock was widely popular in the 1960s as flocks of disaffected youth travelled to NYC to participate in protest and the culture of the time. Source: Internet