Mario Trevi was born in Melito di Napoli, Italy, on November 2, 1941. Mario Trevi spent his childhood in poverty during Italy's post-war. At a young age he began working as a bricklayer, and some evenings he sang for free in the basement of a local puppet theatre where he entratained small audiences.Agostino, in art known as Mario Trevi, soon changed job from a bricklayer to a fabric cutter in a fabric shop at Piazza Nicola Amore in Naples, but did not give up singing.