Prince William and Kate Middleton’s surprise podcast appearance

The couple have made a surprise appearance on Mike Tindall’s rugby podcast alongside another royal.

Prince William and Kate, Princess of Wales, made a surprise appearance on a fellow royal’s podcast ahead of the Rugby World Cup.

The couple were joined by Princess Anne on her son-in-law Mike Tindall’s show, The Good, The Bad & The Rugby, where the group shared plenty of anecdotes about their life away from the spotlight.

Mike is a former England rugby ace, and married the late Queen’s granddaughter, Zara Phillips’, in 2011.

During the relaxed 50-minute chat, Tindall’s co-host James Haskell raised the friendly rivalry between William and Kate, who have been known to be competitive with one another.

“I don’t know where this has come from,” Kate joked.

“I don’t think we’ve actually been able to finish a game of tennis. It becomes a mental challenge between the two of us.”

William and Kate couldn’t resist teasing each other during the nearly hour-long episode.

William chimed in, confirming they try to “out-mental” each other.

The couple was then asked whether this trait had been passed down to their children, Prince George, 10, Princess Charlotte, 8, and Prince Louis, 5, with Anne jumping in: “Just a little bit, I think”.

“They’re all of different temperaments and as they’re growing and trying out different sports, it’s going to be interesting to see how that grows and develops,” Kate explained.

Anne, who is also Mike’s mother-in-law, joined William and Kate on the podcast.

During the candid interview, which took place at Windsor Castle, the Prince of Wales revealed the “only time” he’s ever “cried when watching sport” – sweetly admitting it was when his cousin Zara won an equestrian competition.

“I think it was the European championship,” William said.

“I was down in Exmore at the time, camping. We were all huddling around the phone, watching it. She was there, she was blubbing away, the flag was going up. I was in pieces. I was so proud.”

Kate confirmed his story, adding: “I can remember, because you came back and said I’ve never been so proud of anyone.”

At another point, the Princess of Wales opened up about her major life regret, admitting she was “absolutely gutted to have missed Andy Murray’s game when he won his gold medal event.”

The senior royals appeared on the rugby podcast in honour of the Rugby World cup, which kicked off this weekend in France.

William is patron of the Welsh Rugby Union, Kate is patron of the Rugby Football Union and the Princess Royal is patron of the Scottish Rugby Union.