Colorado Ballet, once known as the Colorado Concert Ballet, is one of the oldest cultural institutions in the state and is the only troupe in the region to perform with a full orchestra. There are 25 resident professional dancers, under the current direction of Martin Fredmann, from all over the world. The company features both one-act and full-length ballets and performs the ever popular holiday classic The Nutcracker. Performances occur at the Ellie Caulkins Opera House, in the downtown Denver Performing Arts Complex.