The Philippine Madrigal Singers (affectionately known as the Madz) is one of the world's best choirs. It was founded in 1963 by Philippine National Artist for Music, Professor Andrea O. Veneracion. The Madz is mostly composed of students, faculty and alumni from the University of the Philippines. The group's trademark performance is singing in a semi-circle without a conductor in the middle. Have you heard them sing? What can you say about them?