Chattanooga Choo Choo.

1941 by Mack Gordon and Harry Warren.

Orignal recording Glenn Miller and His Orchestra (first song to receive a gold record, presented by RCA Victor in 1942, for sales of 1.2 million copies.)

Pardon me boy, is that the Chattanooga Choo Choo?
Track twenty nine, boy you can gimme a shine…When you hear the whistle blowin’ eight to the bar
Then you know that Tennessee is not very far