The Sonus Juventus choir (Latin, "the sound of the youth") is the official choir of the University of Baguio Science High School. The group was started in 1992 as a venue for artistic expression in the field of music for the students of the school. It is currently Baguio City's longest existing high school choir with an average membership of 25 singers per school year.
Since then, the Sonus Juventus has won numerous awards in various choral and music competitions. They have also performed concerts in Baguio and provinces. The choir is also regularly invited to perform and compete in many international choral competitions and festivals, having successfully qualified for the ‘Isola Del Sole’ International Choir Competition in Italy, and the Budapest International Choir Competitions in Hungary, both in 2002.
The Sonus Juventus also has the distinction of being the last high school champions of the defunct Saniweng Christmas Choral Competitions and the first high school Champions of the 2005 Camp John Hay Chorale Competition.
The choir is currently under the tutelage of Gomi Lao, a professional composer and arranger.