Trans-Siberian Orchestra - Christmas Eve in Sarajevo

Trans-Siberian Orchestra (TSO) is an American progressive metal band founded in 1993 by producer, composer, and lyricist Paul O'Neill, who brought together Jon Oliva and Al Pitrelli (both members of Savatage) and keyboardist and co-producer Robert Kinkel to form the core of the creative team. Since then, TSO sold nearly 8 million concert tickets and 8.5 million albums. The band's musical style incorporates classical, orchestral, symphonic, and progressive elements into hard rock and heavy metal. The band is most famous for their series of rock operas: Christmas Eve and Other Stories, The Christmas Attic, Beethoven's Last Night, The Lost Christmas Eve (the final installment of their Christmas trilogy), and their two-disc Night Castle. Trans-Siberian Orchestra is also known for their extensive charity work and elaborate concerts, which include an orchestra, a light show, lasers, pyrotechnics, moving trusses, video screens, and effects synchronized to music.

Both Billboard Magazine and Pollstar have ranked them as one of the top ten ticket-selling bands in the first decade of the new millennium.