Trans-Siberian Orchestra (TSO) is a progressive rock band founded by Paul O’Neill, a prolific rock industry veteran, to bring his rock operas to life. TSO transcends traditional band limitations with multiple singers portraying various characters in O’Neill’s narratives. While they are renowned for their holiday trilogy—“Christmas Eve & Other Stories,” “The Christmas Attic,” and “The Lost Christmas Eve”—TSO has also released non-holiday rock operas like “Beethoven’s Last Night.” Since their touring debut in 1999, TSO has become one of the top 25 touring acts in the country, playing over 2,000 Winter Tour shows for more than 17 million fans and donating over 11 million dollars to local charities.