It was a hit in the 1980's I believe! Heard it in a shop today and the chorus seems to be just staying in my head all day!! Arghhhhh! I tried google and youtube to no avail.
It has a distinctive chorus along the lines of "....my baby! na na na na naaaa...!" The way baby is said sounds like "bey!ba!"
A thousand thanks if anyone knows what song I am talking about!