40's song?

There's this 40's swing song that I'm looking for, and I was wondering if you guys knew it. It's in a lot of WW2 movies, but I remember it specifically in the Boy In The Stripped Pajamas when the dad has his promotion party the song plays in the background (So it isn't in the official soundtrack). It's purely instrumental and up beat. If you know it plz tell me or link me to something that it might be.

if you people have a weird min like me it goes: do do do do do do do do do da dada da da da dum da da ba da da da da da bada da da ba da da da da bada da da da ba da da da da da dum da dum da dum.

You could watch the movie and look in the credits. You might find it there