What Lady?
You don’t need to be a parent to know that children’s minds are more absorbent than a ShamWow. New ideas, songs, phrases, and words are absorbed and regurgitated for days on end until the next thing comes along and takes over. We suspect they pick it up from us, other kids, or tv, not an unseen guest in their bedroom.
Every bone in our body hopes this little one really means he heard this new song on a radio in his bedroom; otherwise, it might be time to sage every corner of the house and loudly command any ghostly visitors to leave and go find their own families to frighten.