By Mary Louise Ruehr Published: February 1, 2013 4:00 AM
Jonathan Warren of Hiram is singing with the Pittsburgh Symphony Pops All-Star College Chorus at Heinz Hall in Pittsburgh. He is a sophomore at Grove City College in Pennsylvania, majoring in music education. The chorus recently presented a Marvin Hamlisch Tribute Concert. They will perform again on Feb. 7 at 7:30 p.m.; Feb. 8 and 9 at 8 p.m.; and Feb. 10 at 2:30 p.m.