The Italian pop opera trio, IL VOLO, plans a nationwide U.S. Live Nation tour from Aug. 25 to Sept. 29, which will bring them to Sleep Train Pavilion  in Concord at 8 p.m. Tuesday, Aug. 27. The group features Piero Barone, 20, Ignazio Borschetto, 18, and Gianluca Gioble, [...]