What’s that silly song called?

[HuntIdeas]

The one where you have to do sillier and sillier things each time (stick you bum out / chin up etc)?

Singing In The Rain? Father William?

Chu Chu ua by Brigada Bum?
It's Spanish originally but there are English versions

Chu chu ua - that’s the one, thanks

Stick a deckchair up your nose is part of it isn't it? Think something to do with spitting image theme song? Or could it be the hokey cokey?

Definitely Chu Chu Ua. Spanish holiday kids club disco staple