She was given the nickname Wagatha Christie after her sleuthing skills unmasked fellow Wag Rebekah Vardy for leaking stories about her to a red-top newspaper.
And detective Coleen Rooney delighted the nation again after she worked out two of her I'm A Celebrity campmates, Love Island’s Maura Higgins and Reverend Richard Coles, were lying - resulting in them having to take part in a gruesome eating trial.
But there is one woman who is never surprised by the 39-year-old’s investigation skills - her mother Colette, 61, proudly told MailOnline: ‘She’d figure anything out.’
Colette arrived in Australia with her husband and Coleen’s father, Anthony, as they accompanied Coleen’s youngest sons Kit, eight, and Cass, six, to greet their mother off the Jungle bridge next week.
Her eldest sons Kai, 15, and Klay, 12, chose to remain in the UK with their father Wayne Rooney, 39, who is also staying home thanks to his job as a manager at Plymouth Argyle.
Beaming, the grandmother said: ‘She's amazing. She’s doing really well. We’re so proud. The kids have been really good, to tell you the truth.
‘If they hadn’t been able to see her, it would’ve been different. One of them’s been really quiet and subdued but not much longer now.’
When Coleen arrived at the same airport just two weeks earlier she told of how she had ‘shed a few tears’ after dropping her four sons at school before leaving for her stint in the I’m A Celebrity jungle.
Laughing, Colette revealed she was ‘glad to see the back of the whiteboard’, which her daughter left behind before her departure which had a strict schedule for the grandmother to follow when it came to caring for her boys.
When asked if Coleen would have been angry if Colette hadn’t adhered to the instructions, the mother-of-three raised her eyebrows and said: ‘Oh, I followed the whiteboard all right.’
In an Instagram video the night before she left, Coleen explained the extreme lengths she had gone to make sure her sons were ok while she was away in the Australian Jungle for three weeks.
Revealing two huge whiteboards in her dining room, Coleen said she had covered them with her children's schedules 'on both sides'.
Speaking to the camera, Coleen said: 'I am really anxious about leaving the kids, that's my biggest thing, for weeks and months that's been on my mind.
'But I've come to terms with it and I've planned and prepped, I've got an army of people - family and friends - school friends all helping out with the kids. They are going to be fine, they'll probably have a great time.
'I've prepped as you can see, behind me, that is literally the front and back four weeks of timetables, football runs, parties and everything.'
Her four sons, who she shares with the former England Football captain Wayne Rooney, have been cheering their mother on from the family’s £20million Cheshire mansion and voting her in for trials.
After Coleen's trial in which she won nine out of the 12 stars as she lay in a hole with rats while covered in critters, the boys made a sweet tribute to their mother's success - posing in front of the Christmas tree with their stars.
But Coleen’s best moment was when she figured out Maura Higgins and Rev Coles had been living in a separate luxurious camp, Jungle Junkyard, with a bed and even a bubble bath.
Their secret mission was to convince the other campmates they were living in terrible conditions.
If they successfully duped them, the 10 starving campmates - as well as both of them - would receive a jungle buffet including burgers, hotdogs and chips.
But while the first six portions had been secured, the 38-year-old wife of Wayne Rooney smelled a rat and discovered her fellow campmates were being hoodwinked by Ms Higgins and Rev Coles. That meant they had to go into battle to win the remaining feasts - with them successfully atoning for their sins.
A starving but victorious Mrs Rooney beamed open-mouthed as she ran through the Australian jungle after the trial, rewarded with a tray with six hot dogs laden with chicken nuggets.
I'm A Celebrity viewers were delighted when she was the only campmate on Friday night's episode to sniff out Ms Higgins and Rev Coles' lies.
After speaking to the pair, Mrs Rooney sensed something wasn't right. She returned to the main camp and after sharing her suspicions, the pair were rumbled.
The mother-of-four said: 'They're not telling us the truth. I came out of there, not convinced they were living in those conditions. They looked a lot better than when I saw them yesterday.'
The other campmates heaped praise on Mrs Rooney for solving the mystery. N-Dubz singer Tulisa Contostavlos said: 'If Wagatha Christie smells something fishy, then I believe it.' Social media star, GK Barry, added: 'That Coleen realised they were lying is even funnier - she should be a spy.'
Mrs Rooney set up an ingenious trap on Instagram five years ago to catch Mrs Vardy, who was leaking stories about her family to the tabloids. She then publicly outed the 42-year-old as a social media 'mole' by explaining: 'It's... Rebekah Vardy.'
In what has now been dubbed the 'Wagatha Christie' trial, the wife of the Leicester City striker, Jamie Vardy, unsuccessfully sued Mrs Rooney for libel in a High Court battle in 2022.