The St. Catherine Laboure Multi-Cultural Heritage Singers came into existence during the 2005-2006 school year. The reason for its creation was to reflect the cultural diversity of St. Catherine Labouré School and to demonstrate how children of such diverse backgrounds can attend school together in peace, tolerance, and harmony and blend their voices in unity. The students in the group represent over 15 nations and are a true example of America as a "Melting Pot".

The singers have had the wonderful opportunity to perform for the American Society of Association Executives, the Nursing Association, the Elementary School Principals Association, the St. Catherine Labouré Sodality, and the Department of Labor. However, the highlight of their singing performances was a year and a half ago when they performed for Mrs. Laura Bush at the National Press Club.

Mrs. Rosemary Clarke directs the Saint Catherine Labouré Multi-Cultural Heritage Singers.