- Riverside City College Chamber Singers & John Byun
- The Choral Project, Daniel Hughes, Jenie Song, Marc Hughes, Carolyn Derwing, Kevin Schieberl & Juanita Harris
- Garland High School A cappella Women
- Dolce Canto
- The Choral Project
- University of British Columbia Singers
- Ile de France Vittoria Regional Choir & Orchestre de la Cité