50s swing background song thats barely audible in movie

Hi all,

I am in the dire need to find the song they used in the background. Somehow its uncredited, and I just can't find anything on it online.

I'm guessing something from the 50s period.

Who knows this song?

https://youtu.be/dra2BBjPwp4?si=hY6EZFZfo6wQVrxs