 In The Pussycats' 1966 "Dressed in Black", (co-written by George 'Shadow' Morton, and originally a Shangri-Las B-side) and in "We Don't Belong" by UK singer Sylvan (1965), the heartbreak and melancholy are palpable – and in Sylvan's case, nearly suicidal.Ethnomusicologist Kirsten Zemke considers these songs as forming a strictly musical genre that was bound by common thematic tropes, musical style and production elements; and as being of their time.As for their popularity, she writes