An advanced group of musicians who serve as the organization's premiere touring ensemble. Singers range in age from 10-18. Members perform a variety of compositions representing many musical styles from all periods. The Concert Chorus continues the development of musicianship in each individual singer, as well as the ensemble as a whole. Their tour destinations have included many cities in the United States, as well as Canada, Italy, England and Ireland.

The Concert Chorus has appeared at three regional conventions of the American Choral Directors Association. They have presented solo concerts at Carnegie Hall in New York City, performed at St. Peter's Basilica in Rome, the Palazzo Vecchio in Florence, served as Artists-in-Residence at three universities and performed frequently with the Louisiana Philharmonic Orchestra and the New Orleans Symphony. The choirs have also won numerous awards in music festivals throughout the Southern United States and frequently perform with the Louisiana Philharmonic Orchestra.

The Concert Chorus made their solo debut at Carnegie Hall in June of 1997, under the direction of Cheryl Dupont. In February of 1998 they presented a concert with the American Boychoir in New Orleans, and in March 1998 they performed at the national Kodaly convention. In May of 1998 they served as Honor Choir at the Children in Harmony Festival at Walt Disney World.

In June of 1999, NOCC sponsored the first annual Crescent City Choral Festival which was held in downtown New Orleans in June of 1999, culminating with a concert at St. Louis Cathedral. The festival featured ten children's choirs from throughout the United States. Conductors were NOCC Artistic Director Cheryl Dupont and guest artist Moses Hogan. Subsequent festivals have featured the noted English composer, conductor and singer, Bob Chilcott. In July of 2002, the Concert Chorus served as Young Artists-in-Residence at the Choral Music Experience International Millennium Festival at the National University of Ireland. They were the only American choir to receive this prestigious invitation.