King Charles has joked that he and Elton John are “still standing” in a clip recorded for the singer’s radio ‌show and aired on the monarch’s 78th birthday.

The King had joined John ‌for a special edition of the singer’s Elton John’s Rocket Hour on Apple Music ‌to celebrate 50 years of The King’s Trust and musicians who have supported his youth charity.

During the episode, which was first broadcast on Saturday to coincide with the king’s birthday, the pair discussed benefit concerts held in support of the trust ‌including a ‌rock gala ⁠held at Wembley Arena in 1986 where John performed ​his hit I’m Still Standing.

“I know people in all kinds of circumstances find this song inspiring, not only for its marvellous spirit, but also its message of resilience,” the King said.

“And certainly 40 years on from that remarkable concert, we and the Trust are ⁠definitely still standing.”

John, who is 79, ‌replied, “I’m ​still sitting now, though”, prompting laughs from the King.

“With occasional bits dropping off ​here and there,” ‌the King said. “I know this is a terrible problem as we get older.”

Both ​men have suffered well-documented health problems in recent years, with the King still undergoing treatment for cancer and John suffering problems with his ​eyesight.

When ​he was the heir, the King ​founded the Prince’s Trust in 1976 using his ‌Royal Navy severance pay to help disadvantaged young people prepare for work, find jobs or start businesses.

It was renamed the King’s Trust after the King ascended to the throne in 2022 and the charity says it has supported more than ​one million young people since its launch.

The duo selected 14 tracks to highlight during the King’s Rocket Hour appearance including Hound Dog by Elvis Presley, Lenny Kravitz’s It Ain’t Over ‘Til It’s Over, which the King described as “rather beautiful”, Phil Collins’ In The Air Tonight and Sir Rod Stewart’s rendition of Handbags And Gladrags.

The King picked Giant by Calvin Harris and Rag’n’Bone Man as the song he felt summed up his charity because of its spirit of gaining strength from others.

Bob Dylan’s Gotta Serve Somebody and Pete Townshend’s Let My Love Open The Door also made the cut, as did Muse with Feeling Good, Skye Newman’s Hairdresser, Raye’s Joy, and Nectar Woode’s Wine Into Water, featuring John on piano.