Mannheim Steamroller is an American music group founded by composer and musician Chip Davis in 1974. They are best known for their unique blend of classical music and modern rock, often incorporating electronic elements. The group gained widespread popularity with their holiday albums, particularly their rendition of Christmas music. The band's signature sound features layered synthesizers, orchestral arrangements, and rhythmic percussion. Mannheim Steamroller has sold millions of albums worldwide, making them one of the top-selling holiday music artists in the United States. Their innovative approach has influenced many contemporary artists in the genre.