This an original audio recording about making inferences. This song could be used in conjunction with any lesson about the skill of making inferences. I've used it in the past after an introduction to inferences. My advice is to parse the song into phrases and ask the class to examine their meaning. Then use quotes from the song when students are attempting the skill.
Having taught first grade for nearly a decade, I've realized the power of music and its impact on children. It encourages critical thinking, social interaction, appeals to multiple learning modalities, and communicates subject matter in a fun way! Look for many more songs covering multiple subjects including mathematics, character development, literacy skills and much more.