This is what happened when Newsround challenged eight celebs to create a brand new story at CBBC's Awesome Authors event.

Each celeb had to come up with a few lines - they could be as creative as they wanted, but they had to follow whatever the previous person had said.

So get ready for a boy called Joseph, gibbons, a spaceship and a dog called Kipper!

Geek Girl author Holly Smale kicked it off and the tale was completed by Frank Cottrell Boyce - live on Newsround.

Watch the full story, which also features Sam and Mark, Nicola Davies, Lucy Hawking, Leona Vaughan and Bali Rai.