That's why Mary Roos recorded her song in the ladies' room. That's why she recorded one of her songs in the women's toilet.
The pop singer ended her music career in 2020 after 60 years. Roos released her last studio album “Abenteuer Unvernunft’ in 2018 – 50 years after the first. A year later she announced that she wanted to retire from the stage. In 2020 she said her final goodbye in an MDR broadcast.