In DC’s Legends of Tomorrow episode 2x02 “Justice Society of America”, Dr. Martin Stein impersonated singer Max Lorenz to get into a Nazi club. While there, a Nazi army official said that he didn’t believe he was who he said he was, so he asked him to sing.
After a lot of tension where it looked like Stein would be outed, he begins to sing Edelweiss (which he calls “The Sound of Music”) and everyone is pleasantly shocked that he can sing so well. By the end, the Nazi official is actually in tears over how beautiful the song is.
I have doubts that Stein sang so well because of a natural talent, since he seemed to be trying to get out of singing before getting up. I remembered that Stein was using ingestible translator to speak German, which works by attaching to the larynx and uses a neural interface. Did he sing so well because of that tech? It would certainly explain everyone’s surprise.
Fun Fact: In real life, Max Lorenz was a tenor, so the fact that Martin Stein is not should have been a dead giveaway! I'll chalk that up to artistic liberty though.