I hate how Aretha is wearing soiled clothes during her show stopping number
https://www.youtube.com/watch?v=Vet6AHmq3_s
Stained, ragged clothes.
If I were to direct this movie, I'd have the place magically transform into a fantasy world with a colorful set, and lights, and backup dancers, and her, dressed immaculately.
Then when the song is over, it can go back to the dull, dingy diner.