Lol you're not the only one who has this "radio". Karen I do someting sort of like that. I have a twin sister, so we will think alike ALOT. Sometime I'll have a song in my head, and then I'll start humming it and it will get into her head, and vice versa. Sometimes we have the same song in our heads but we don't know it for the longest time! Usually I have to listen to the song to get rid of it, but that usually doesn't work. It's a last resort