Il Volo, the Italian opera trio, will perform Sept. 11 at Heinz Hall, Downtown. The group's members — Piero Barons, 19, Gianluca Ginoble, 18, and Ignazio Boschetto, 18 — gained million of fans when the singers performed on the 2012 PBS special "Il Volo Takes Flight."   They also were special guests during Barbra Streisand's 2012 tour. T...

By Donna Doherty   They might be teenagers, but they sing the kinds of songs that bring moms and daughters to concerts together, and they do so well enough to capture the attention of Barbra Streisand, who invited the Italian trio to sing with her on her 2012 tour.   Il Volo, which appropriately means "the flight," has skyrocketed to...