But first, here's the song from the film version of the Broadway show by Irving Berlin. The movie starred Ethel Merman recreating her Broadway role, with Donald O'Connor as a young aide in the ambassador's office whose fallen in love with a woman in the country of Lichtenburg where they're stationed.
So, there's no recording on film or record of Ethel Merman and Russell Nype singing their big song from the show. But -- that doesn't mean they didn't sing it elsewhere. And you're in luck! Here's an audio recording of the two recreating their big number on a special.