Related Information for Soeur Sourire "Soeur Sourire" is an incorrect spelling of Sœur Sourire.The Singing Nun was Jeanine Deckers (born Jeanne-Paule Marie Deckers; October 17, 1933 – March 29, 1985), a member (as Sister Luc Gabriel) of the Dominican Fichermont Convent in Belgium.Popular in the convent for her music, she was encouraged by the other nuns to record an album in 1963. One song from that album, Dominique, soared to the top of the charts in the United States. Overnight, the Dominican nun was an interna.. read more