Dancing in the Streets: A History of Collective Joy is a book authored by Barbara Ehrenreich.The author coins the term "collective joy" to describe group events which involve music, synchronized movement, costumes, and a feeling of loss of self. There is no precise word in English to describe the phenomenon.The book describes cycles of creation and suppression of collective joy events. The events generally arise spontaneously and are regarded as dangerous (see Collective hysteria, Riot).