Thanks for posting, Gene was a real star. His birth name was actually Orvon Grover Autry. He threw the 'Eugene' in years later, apparently didn't care much for 'Grover'
This song was recorded six times in 1940, as far as sources know the first release being by the Sammy Kaye Orchestra with vocals by Tommy Ryan (released may 31st 1940). Another version was by the Glenn Miller Orchestra. Which ever one was the original or first version we'll probably never know for sure, but it's likely to be either the Sammy Kaye version, or the Gene Krupa version (released June 3rd 1940).