Joe and Simon battled with scorpions, rats and eels in the Trauma Tank challenge.

The ‘I’m A Celebrity… Get Me Out Of Here!’ contestants – who were nominated by their teams for the gruelling task – were forced to reach into infested tanks to pull out stars in order to determine which group will be given food and a comfortable camp.

The winner - which will be revealed tonight on ITV1 at 9pm – is the celebrity with the most stars collected.

Former Blue singer Simon said of the creepy challenge: “Robert piled on the pressure saying, ‘Are you sure? Because if you don’t win were not going to eat which is a massive thing for us.’ “But it’s the first trial so you want to start as you mean to go on.”

Joe added: “I’m regretting my decision big time. I thought I’d sit back and let everybody do the hard work for the first week.

“And as soon at they ask if I want to do a challenge I stick my hand up like an idiot. I’m thinking I should have kept my mouth shut.”