Ben thought Sharyn was stuck in hypnosis forever after prank

We've never seen ben look so scared! 

Today on the show, Jono and Sharyn thought they'd play a little prank on Ben with the help of Ian Blaine from Hypnotic FX. They pretended to 'put Sharyn under' and then not be able to wake her up and see how Ben would react...

Watch the full vid above.