He and the former Girls Aloud star, 38, were reunited at the Newcastle venue, jointly funded by their charities to help young people develop skills and confidence.

       The heir thanked Cheryl - a celebrity ambassador for The Prince's Trust - for her "energy and enthusiasm" in helping to establish the centre. The singer turned X Factor judge officially opened it in 2018 after raising ￡1 million to help set it up. And she was delighted to be back in her home city yesterday.

       She said: "It was incredibly inspiring to meet young people and hear how transformational the Prince's Trust support has been for them."

       Cheryl and Charles handed certificates to candidates who have completed a 12-week project. One, Dan

       Hannigan, 18, said: "I wouldn't have believed 12 weeks ago that I'd be confident enough to speak in front of the Prince of Wales and Cheryl."

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       Charles met young entrepreneurs helped by the trust to start their own businesses. Satwika Saran, 20, set up Ma's and Monkey's, delivering vegetarian and vegan Indian food in Hartlepool. And James Tyer, 29, told him about his delivery service using electric bikes in Newcastle.