The ITV reality programme moved from its home in the Australian jungle to Gwrych Castle in Wales last year because of the coronavirus pandemic, and it's due to remain there this year.
Van Outen, 47, told The Sun she has been asked to do the show before but it seems she won’t be signing up until it heads back Down Under.
“I do get asked to do it but there is no chance I can do it this year because I am at Proud (cabaret show)," she said.
"I will do it at some point. I think I’m A Celebrity for my 50th birthday would be something nice to do.
"But it has to be Australia for me, not Wales - as much as I love the Welsh. I am a lot more jungle vibes than castle vibes, to be honest."
Van Outen is no stranger to reality television, having competed on Strictly Come Dancing in 2012 and on the latest series of Dancing On Ice.
The star was forced to pull out of the competition earlier this year after hurting her shoulder, with an MRI scan showing she suffered three bone fractures and a partial dislocation.
She recently told OK! magazine she was still recovering.
“I’m still having physio," she said. "I did break my bones and they have healed. But I’ve still got some muscle tearing and muscle damage.
"Annoyingly, muscles take longer to repair than bones.
"It’s a bit of a slow process and it’s a case of doing all my exercises."
It was confirmed last week that I'm A Celebrity would be heading back to Abergele in north Wales for a second year.
ITV head of entertainment commissioning Katie Rawcliffe said: “We can confirm today that we’ll be returning to Wales for the 2021 series of I’m A Celebrity…Get Me Out Of Here!
"We’ve always said we have contingencies in place for the series if the COVID situation continued to bring uncertainty, and after a highly successful run at the castle last year we’re pleased that we can return there. I have no doubt the production team will produce another hugely entertaining series.”
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