owned by John Lennon – originally black, he had it repainted in 1967 in a vivid psychedelic gypsy caravan style, prompting bandmate George Harrison to have his Mini Cooper similarly repainted with logos and devices that reflected his burgeoning interest in Indian spirituality. Music The fashion for psychedelic drugs gave its name to the style of psychedelia, a term describing a category of rock music known as psychedelic rock, as well as visual art, fashion, and culture that is associated originally with the high 1960s, hippies, and the Haight-Ashbury neighborhood of San Francisco, California. It often used new recording techniques and effects while drawing on Eastern sources such as the ragas and drones of Indian music. One of the first uses of the word in the music scene of this time was in the 1964 recording of "Hesitation Blues" by folk group the Holy Modal Rounders. The term was introduced to rock music and popularized by the 13th Floor Elevators 1966 album The Psychedelic Sounds of the 13th Floor Elevators. Psychedelia truly took off in 1967 with the Summer of Love and, although associated with San Francisco, the style soon spread across the US, and worldwide. The electronic dance music scene is strongly linked to the consumption of psychedelic drugs, particularly MDMA. Drug usage in the EDM scene can primarily be traced to British acid house parties and the Second Summer of Love, which marked the beginnings of rave culture; these movements, however, were distinct from and mostly unrelated to 1960s psychedelia. Festivals A psychedelic festival is a gathering that promotes psychedelic music and art in an effort to unite participants in a communal psychedelic experience. Psychedelic festivals have been described as "temporary communities reproduced via personal and collective acts of transgression ... through the routine expenditure of excess energy, and through self-sacrifice in acts of abandonment involving ecstatic dancing often fuelled by chemical cocktails." These festivals often emphasize the ideals of peace, love, unity, and respect. Notable psychedelic festivals include the biennial Boom Festival in Portugal, Ozora Festival in Hungary, Universo Paralello in Brazil as well as Nevada's Burning Man and California's Symbiosis Gathering in the United States. Conferences In recent years there has been a resurgence in interest in psychedelic research and a growing number of conferences now take place across the globe. The psychedelic research charity Breaking Convention have hosted one of the world's largest since 2011.