Jones, 38, cried as he was crowned the 2024 winner, saying it felt “amazing” and “surreal”.
He is part of the pop-rock boyband McFly, which formed in the early 2000s and scored hits with songs including Five Colours in Her Hair and All About You.
Rooney hit headlines when the so-called Wagatha Christie case went to court in 2022.
Ahead of the winner being named, Rooney said: “Knowing that I have made it to the final makes me proud. I’m a proud mum, I’m a proud wife, I’m a proud daughter.”
Jones added: “It feels amazing, I didn’t expect this at all.”
During the final, the trio took on their final Bushtucker trial to win a three-course meal for their last night in camp.
In his exit interview, Coles said: “It was much harder than I thought it would be, but that was great.
“The best thing was everybody else, we had such a good time.”
Also part of the line-up were professional dancer Oti Mabuse, Coronation street actor Alan Halsall, former professional boxer Barry McGuigan and TikToker GK Barry.
Love Island star Maura Higgins and Coles arrived in camp as this year’s late arrivals.
Loose Women panellist Jane Moore was the first person to leave, calling it a “weird and magical experience”.
She declined to call it a positive time, saying “I’ve never been so soaked in my life, constantly”, referencing the rain that swept the camp on several days.
Radio 1 DJ Dean McCullough was second to leave, after taking on seven trials during his time on the show.
He proved to be a divisive figure in the camp after being accused of not pulling his weight in tasks by his fellow celebrities.
In a shock twist, N-Dubz singer and former X Factor judge Tulisa Constostavlos became the third celebrity to leave.
She did not appear on ITV’s spin-off show I’m A Celebrity… Unpacked and then deleted all posts about the show on her Instagram page.
Then Constostavlos posted a video, saying she had been feeling “overwhelmed” since leaving the jungle and was taking a break to focus on her mental health.