I used to sing this at my dancing school in Prescot, England.

Once upon a time so the story's told
In fairyland lives a man very old
Good little children he loved most dear
And he liked to come and see them once every year
He rides on a sleigh each Christmas Eve night
With a cloak rosy red and a beard snowy white
So listen now children, if you're very good
and do as I tell you as little ones should ...

I'll telephone and tell old Mr santa Claus
You want him to call tonight
He will come and see you when you're quietly sleeping
through the bedroom, he'll be softly creeping
hang up all your stockings on the bed stead children
Blow out the candlelight
Jump into bed, cover up your head
Blow a kiss ... Goodnight!

Does anyone know where this song came from or who sang the original please?
Thank you

GB