Who's singing, 'Deustchland Uber Alles'?

I'll try to help.

It was PanAm stewardess Colette. The girls were invited to the embassy in Berlin--early 60s of course.

Colette is French. Her age means she grew up during the war in France. She harbors no love for Germans.

As a kind of way to make a point, she, the French person, sings Uber Alles a kind of a mocking of what was going on at the embassy during the party.

She later points out that all the French children were FORCED to learn Uber Alles under German occupation---she she was making the point that the Germans were being treated in the mid-60s as sympathetic people at the embassy party; yet she'd been occupied by them, unlike some others in the room. She had first hand experience at their brutality during the war. And forcing French children to learn and sing Uber Alles under occupation was a humiliation they had to endure.

She behaved badly by the standard set for her at the party. But she simply reacted emotionally rather than sensibly, because as a Pan Am employee she was there as a kind of public relationship representative; so it was a very damaging thing for her to do--to act out in public like that for personal reasons when she was representing her employer.

That's the context.