Essex star Ferne is a late arrival to the jungle and will surprise the current campmates when she turns up with MIC star Spencer Matthews and Geordie Shore's Vicky Pattison.
She's the fourth TOWIE star to attempt the show following Mark Wright. Joey Essex and Gemma herself, who famously lasted just three days before quitting.
Appearing on I'm A Celebrity… Get Me Out of Here NO!, Gemma said: "I do know Ferne really well and Ferne and I have had a few blows. You know what it is with Ferne? She's an unusual type of girl. Ferne is actually very intelligent, very quick, very witty. She's in her own world.
"But there is such an endearing and loveable side to Ferne and I do think you will see by the end of the jungle, people will love Ferne."
Gemma added: "I want everyone to give Ferne a chance. You only see one side to her in TOWIE. I wouldn't be friends with her if she wasn't lovely."
I'm A Celebrity continues at 9pm on ITV.