Soeur Sourire, also known as Sister Smile, was the stage name of Jeanne-Paule Marie, a Belgian nun and singer-songwriter. She gained international fame in the 1960s with her hit song "Dominique," which celebrated the life of Saint Dominic. The song topped charts in several countries and became a symbol of her unique blend of faith and music. Despite her initial success, Soeur Sourire faced challenges in her personal life and career. She eventually left the convent and struggled with mental health issues. Tragically, she passed away in 1985, but her music continues to resonate with audiences around the world.