Eva Sylvia Vrethammar (born August 22, 1945, Uddevalla, Sweden), is a Swedish traditional pop and jazz singer. She is the daughter of Harald Vrethammar, an education official, and Britta Vrethammar, a musical education teacher, specializing in the piano.In 1969, she released a Swedish-language cover version of Dusty Springfields Son of a Preacher Man, entitled En lärling på våran gård. She is best known for the 1974 song, "Y Viva España".