My Daddy is Hilarious

Now Dad has got a mohawk -
It must be two feet tall!
It's scraping on the ceiling!
Oh, I don't like this at all.

Dad usually looks fairly sensible, so it's a bit surprising when he starts appearing with outlandish new hairstyles! Then things get weirder when he turns up in odd and eccentric clothes! Why can this be? Has he gone mad? No, it's a fancy dress party!