Trans-Siberian Orchestra, often abbreviated as TSO, is a renowned rock band from the United States, known for their progressive rock, symphonic metal, and epic Christmas music productions. Founded in New York City in 1996, TSO was the brainchild of producer and composer Paul O'Neill, along with Jon Oliva, Robert Kinkel, and Al Pitrelli. The ensemble became famous for their unique blend of rock opera, classical music, and thematic storytelling, capturing the spirit of holiday seasons with elaborate live performances and visual effects. They gained popularity with albums like 'Christmas Eve and Other Stories' and 'The Lost Christmas Eve', featuring memorable singles such as 'Christmas Eve/Sarajevo 12/24'.
The band's extravagant performances and intricate compositions earned them numerous accolades and a dedicated global following. TSO's tours are highly anticipated and are an integral part of the festive season for many fans. Despite the loss of O'Neill in 2017, TSO continues to captivate audiences with their electrifying shows and timeless music.