Holly revealed the deal in a chat on ITV's This Morning yesterday.
The TV presenter was joined by co-host Phil and current Strictly stars, Mollie King and AJ Pritchard.
“AJ was saying to me, when are you going to do Strictly?” Holly said to Phil. “And I was like, ‘no, no’. And you were saying ‘you should do it!’
“And I went right, when you go in the jungle, I’ll do Strictly.”
But in bad news for fans, Phil declared: “It’s never going to happen!”
Phil is far from the only celeb not to be interested in the jungle.
Piers Morgan revealed earlier this year he turned down 'a lot of money' to appear on I'm A Celebrity Get Me Out Of Here. The Good Morning Britain presenter suggested no amount would get him in the jungle.
"I've been offered lots of money for these things. To go and eat bugs," he said on the ITV show. "They say 'Hey, do you want to go to a jungle in Australia and eat kangaroo testicles as Ant and Dec mock you?'. No thanks."
And Judge Rinder ruled out any more reality telly following Strictly Come Dancing. The telly judge, who finished fifth in Strictly last year, gave a firm no to appearing on I'm A Celebrity Get Me Out Of Here.
He said: "I only did Strictly because that was completely different and because dancing was my love. You won't see me devouring kangaroo bollocks."