I just watched the show, they didn't do much at all really.

Because there was three of them only one could play the cake game where there's a cake on a skatboard and they have to try hit it up high on this thing. It's hard to explain.

So to decide they gave them three chocolates, one foul flavored spicey one which Bonnie got so she was eliminated.

Then they got ginger nuts (to resemble their hair - they're British biscuits) and the twins had to dunk them in a cup of tea and hold them in the air, whoever's fell first would be eliminated. Neither one fell so the presenter crumpled James' and Oliver played the game.

They said his cake went to 4 foot but it went much higher, which Harry from McFly saw too and was trying to protest lol but Oliver won out fo him and Harry anyways.

Apparently Chris Rankin (Percy Weasley) is backstage and will be playing another game with them later on.

Bonnie looks really grown up but they all looked a bit awkward to be honest. But then again, that show is mad so I don't blame them.