"Amanhã é 23" (English: Tomorrow Is 23rd) is a Brazilian pop song written by Paula Toller and George Israel and performed by their band Kid Abelha in the album Tomate (1987).
It is then revealed the cause of her depression; the following day (August 23, hence the title) is the twentieth birthday of her rebellious teenage daughter who she has not seen for years.
This song may refer to Paula’s personal story as her mother has abandoned her when she was 5 years old.
It is likely that her mother suffered of depression and that she showed a unhappy face in the photo mentioned, as the following lyrics says “your sad mien feeds my pain”.
Her mother also may have looked posh as it is mentioned in the following sentence “your princess’ attitude, where have you got it from?” Therefore the song may be a subtle message, a sad outburst from an internal child longing contact to her lost mother, as a present for her birthday - “tomorrow is 23 (August), 8 days to the end of the month.