Chief Chaos, I think the 2nd song you mention "Get down, get down, get down, your a bad girl baby and I don't want you around, around, I don't want you around"
Is called "Get down" by Gilbert O'Sullivan Here at this page

A Major contender for these "Earworms" is a song that has not got a published(that I have ever seen)tune, but you know the tune from the words, It is in Alfred Bester's book "The Demolished Man" and is used to block the villans mind from being read. I am avoiding writing it down because it is really hard to get rid of once it starts..