The JLS boy band member is thousands of miles away from home in the Australian jungle. But viewers reckon they've spotted a tell-tale sign that he must be trying to communicate with his family.
The camp mates are not supposed to have any contact with the outside world when they're in the ITV jungle. But it's not uncommon for them to try and show their love with innocent-looking signals – until they do it so much it becomes obvious.
And despite being less than a week into things, it seems Marvin is already missing home. Fans have noticed that he has been holding his right fist over his heart whenever his name is called during the Bushtucker trial selection.
Back at home, he has television presenter and Saturdays singer Rochelle Humes. They have three children together – Alaia-Mai, 10, Valentina Raine, six, and Blake Hampton, three.
Fans have picked up on his hand movement and pointed it out online. One person said on X, formerly Twitter: "Marvin and his fist on heat sign to home again!?
Another said: "Marvin is already doing his secret hand sign to home." A third agreed: "Marvin definitely giving Rochelle a sign by tapping his heart when Ant and Dec enter camp."
Marvin isn't the only one though, as a number of other camp mates appear to be trying to get away with contacting home. EastEnders star Danielle Harold has been seen tapping her hat.
YouTuber Nella Rose appears to cover her mouth every time Ant and Dec speak to her in camp, too. Of course, that could easily be a sign of nerves as she waits to hear whether she'll be doing the Bushtucker trial.
In the past, sneaky celebs have gone as far as writing on their hats. Viewers have seen the famous campers write little messages or kisses on their hat brims.
Former jungle queen Giovanna Fletcher also had a much more obvious signal. She would hold her thumb to her nose to send a signal to her sons, Buzz, Buddy, and Max, and husband Tom.
I'm a Celebrity... Get Me Out of Here! airs nightly at 9pm on ITV and ITVX
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