My 4 year old has learnt a song in French at nursery, he sings it all the time and I really want to know what it is but I can't recognise any words! He has told me that it's called "bee bee moo shoo moo stick". The closest words I can think of are bebe Monsieur musique, but googling hasn't helped! It also involves some actions - pointing to his wrist (like a watch) and hands on hips at a bit that sounds like "ooee".
Any ideas?