Trans-Siberian Orchestra

Trans-Siberian Orchestra (often abbreviated as TSO) is an American progressive rock band that was founded by [a260188]. Their albums and releases are usually centrally themed and have often focused on subjects like Christmas, winter, or grand human achievements. They are especially known for their touring and spectacular live concerts where they have now sold over 10 million tickets worldwide. In similar numbers, they have also sold over 10 million albums.