Song lyrics and enunciation

Now I know why every good choir director teaches singers to enunciate. I wondered why Ariel, the Little Mermaid, sang about "pregnant women, ready to stand. The correct lyrics are "bright young women, ready to stand." More recently, in Adele's Set Fire to the Rain I thought that the beginning lyrics were in French. My coworker told me the actual lines , but I don't remember them. Every time I hear the opening lines, I believe that Adele is singing in French. And today, after struggling with the words, "I'm a rubber duck. I'm a rubber duck (can't be!) I'm a rubber duff?" my daughter went online and found the lyrics. They are not about a rubber duck or even a rubber duff!