"Chattanooga Choo Choo" is a 1941 song written by Mack Gordon and composed by Harry Warren. It was originally recorded as a big band/swing tune by Glenn Miller and His Orchestra and featured in the 1941 movie Sun Valley Serenade. It was the first song to receive a gold record, presented by RCA Victor in 1942, for sales of 1.2 million copies.

Mack Gordon was an American lyricist for the stage and film. He was nominated for the best original song Oscar nine times in 11 years, including five consecutive years between 1940 and 1944, and won the award once, for "You'll Never Know". That song, along with "The More I See You," has proved among his most enduring, and remains popular in films and television commercials to this day. "At Last" is another of his best-known songs.