Prince William and Duchess of Cambridge talk dad dancing, takeaways - and who would win in fight with Prince Harry

Duke and Duchess of Cambridge visit Radio 1 ahead of the London Marathon Duke and Duchess of Cambridge visit Radio 1 ahead of the London Marathon
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They spend their lives in the cloistered world of the Royals, with endless official engagements, carefully-managed public appearances and, this week, a publicity drive on the weighty issue of mental health.

Little wonder, then, that the Duke and Duchess of Cambridge took the chance to let their hair down, in an extraordinary Radio 1 interview which saw him ticked off over texting in the car, joke about his "dad dancing" and asked who would win in a fight between the Duke and his brother. 

While visiting Radio 1, The Duke and Duchess of Cambridge made an appearance on Scott Mills show Credit: BBC

The Royal couple gave an unprecedented insight into life behind Kensington Palace doors, descending into fits of giggles as they were gently teased on air about their television habits, takeaways and what to buy for the Queen on her 91st birthday. 

With only a little encouragement, the Duke and Duchess shared details of their home life which will ring true with parents all over the world, including how they are compelled to feign real interest in the intricacies of children's television so as not to upset Prince George.

The Duke and Duchess of Cambridge gave unprecedented insight into their home life Credit: BBC

The Duke revealed how he is “clinging on” to listening to the youthful Radio 1 at the ripe age of 34, conceding they could go undercover at music festivals in false beards, and detailing their love of box sets including Homeland and the bloodthirsty Game of Thrones “once the kiddies are in bed”.

At one point, the Duke joked about his now infamous "dad dancing" on the ski slopes of Verbier, answering the question of whether he goes to many music gigs by joking: "You know I've got in enough trouble with my dancing recently, so it's best to keep away from that."

He also got a light-hearted ticking off from his wife for saying he had texted in to Radio 1 using an alibi while driving to work for an early morning air ambulance shift.

Scott Mills interviews the Royal couple along with DJ Adele, who is running the marathon Credit: BBC

The Duchess interjected: “What are you doing texting in the car?” before he rapidly assured listeners he had pulled over in a lay-by.

The couple appeared on the Scott Mills show for 15 minutes alongside DJ Adele, who is running the marathon for the royals’ charity Heads Together.

The Duchess giggles are a range of frank questions about their habits

It is their first joint interview to be broadcast live on air. But after a short conversation plugging the charity, the London Marathon and the importance of speaking about mental health issues, they got down to the questions many normal people would have loved to ask.

They told listeners the use their phones “far too much”, that the Duchess will “answer to most things” when it came to her name, and that their favourite takeaway is curry despite the Duke being “not so good with spicy food”.

Prince William reads texts from listeners about "Royal lube"

On what to buy his grandmother for her 91st birthday, the Duke admitted: “It’s quite hard to know what to give the Queen. “We’ve tried making a few things. Now the great-grandchildren are around, they can make things and of course that goes down really well.”

Prince George, he added, was “very good at arts and crafts”.

“Are you taking credit for the arts and crafts?” the Duchess wondered, laughing.

“This is putting the marriage on the line,” the Duke told the audience.

Prince William and Harry: We haven't talked enough about our mother Prince William and Harry: We haven't talked enough about our mother
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On their television viewing habit, the Duke said wearily: “A lot of children’s programmes, my goodness.

“Some of them are really good, but you have to pretend you’re really interested in it because George gets very upset if you’re not showing due diligence to the characters.”

Prince George is besotted with Fireman Sam, he added, but had outgrown Peppa Pig, with Princess Charlotte about to be the right age to watch it.

“It’s your turn to sit with them next time,” the Duke told his wife.

The Duke and Duchess of Cambridge and Prince Harry have been undertaking publicity for Heads Together all week 

In an unusual question for royal interviews, Mills asked him: “If there was a fight between you and Harry, who would win?”

“That’s clearly obvious,” the Duke replied. “Me. Because I’m bigger.”

He also called for a re-run of the sprint race with Prince Harry, done in front of the cameras for Heads Together earlier this year.

“There was definitely some steward inquiry needed on that race because we agreed we’d do a show run. Then I see the glint in my brother’s eye, and the little cheeky grin that my wife’s got.”

Prince Harry: My mother would be ?incredibly proud? of our mental health campaign Prince Harry: My mother would be ?incredibly proud? of our mental health campaign
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By the end of the interview, they had descended into hysterics after presenting Adele with some Vaseline to help her marathon on Sunday which listeners quickly dubbed “royal lube”.

The interview was a light-hearted end to a serious week, which has seen the Duke, Duchess and Prince Harry each speak frankly about their own mental health.

Bryony Gordon's Mad World: Prince Harry Bryony Gordon's Mad World: Prince Harry
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In a final video for Heads Together, the brothers yesterday morning admitted they failed to talk to one another enough about the death of their mother, saying they had been been “uniquely bonded” by their trauma and urging others to speak out earlier.

On Sunday, the trio will attend the London Marathon to cheer on charity runners, the culmination of a year of campaigning to start a “national conversation” about mental health.