Myleene Klass returned to I'm A Celebrity on Wednesday with Georgia 'Toff' Toffolo and Andy Whyment, but viewers couldn't help but comment on the Hear'Say star's youthful appearance.
In her introduction to the show, Mylene reflected on her first Australian adventure and said: "I do feel like a different person. I was in my 20s when I first went into the jungle. Now I'm in my 40s."
I'm A Celebrity viewers couldn't believe Myleene's age and took to Twitter to praise the classical musician and broadcaster.
One fan tweeted: "How the f*** has Myleene Klass not aged a single day in 20 years!! #ImACelebSouthAfrica #ImACeleb."
"Myleene Klass is still as gorgeous as ever! #ImACeleb," another wrote while a third said: "#ImACeleb I really want to know Myleene's secret. She has not aged a day."
Another quipped: "Myleene Klass looking great frozen in time from 2006 #ImACeleb appearance."
Elsewhere on Wednesday's show, the campmates had to choose who they'd like to join them and complete a trial out of the three new arrivals.
They picked Toff, sending Myleene and Andy to a separate camp while the Made In Chelsea star won eight stars for the main camp.
Meanwhile, ahead of returning to the jungle, Myleene explained why she wanted to tackle I'm A Celebrity for a second time.
The musician said: "'When do you get to do an adventure like this?' Doing the all-star series feels like an incredible thing to be part of. It is also a great honour. There have been hundreds of contestants to choose from and it feels like we are in the Avengers!
"My children are excited too. They weren’t around when I first went in and it is something we have always talked about. When we sat down together as a family to talk about it, they told me to do it because it looked like so much fun."
Going on to reflect how her Australian experience changed her, Myleene confessed her confidence was given a massive boost by taking part.
"I came out a different person," she admitted. "I learnt in Australia I was a lot stronger than I gave myself credit for. Before I did the show, I was at college, then I worked as a backing singer, then a pop band and then classical work. You can lose confidence in yourself and you obsess about what is presented to you as you don’t know any better. I realised I was mentally stronger than I ever imagined myself to be."
I'm A Celebrity...South Africa airs on ITV on weekdays at 9pm.
