He's already been revealed to have an eclectic taste in music.
But the listening public might be surprised to discover just how varied it is.
Becoming the first British monarch in history to record their own podcast - which was be aired in full from 6am this morning - King Charles has nominated 17 of his favourite songs from across the Commonwealth.
And there, at the top of the royal playlist, is none other than Kylie Minogue's Loco-Motion.
Describing the song as having an 'infectious energy', the 76-year-old sovereign says: 'This is music for dancing….it has that infectious energy which makes it, I find, incredibly hard to sit still!
'There is such an irresistibly joyous feeling to that song… '
The King reveals he first became an unlikely fan after the pop singer, and ambassador for his then Prince's Trust, came to St James's Palace to perform in 2012 ahead of a Diamond Jubilee visit to Australia.
Also on his 17-strong playlist for Apple Music Radio is another left-field choice - Beyoncé's Crazy in Love - which the star played for him in 2003.
A photo issued by Apple of Music of King Charles III launching The King's Music Room show
Charles during a Jubilee tea dance to mark the Platinum Jubilee at Highgrove in May 2022
Charles and Camilla with a rasta band at Bob Marley Museum in Kingston, Jamaica, in 2008
Pop singer Kylie Minogue receives an OBE from Charles at Buckingham Palace in July 2008
'From a performer so exceptional that I just could not resist including her music,' he says, even though 'Queen Bey' is strictly not a Commonwealth performer.
Describing her as 'incomparable', the King also makes a point of congratulating the star on winning her first album of the year award at the Grammys - a 'shout-out', royal sources say, he 'personally' asked to include.
The royal collaboration with Apple Music, who also boast Sir Elton John on their books, came about after the King was asked if he might be interested in sharing some of his favourite songs to mark Commonwealth Day today.
'Throughout my life, music has meant a great deal to me,' the King explains as he narrates the hour-long show.
'I know that is also the case for so many others. But it has that remarkable ability to bring happy memories flooding back from the deepest recesses of our memory; to comfort us in times of sadness; and to take us to distant places.
'But perhaps, above all, it can lift our spirits to such a degree; and all the more so when it brings us together in celebration. In other words, it brings us joy.
'So this is what I particularly wanted to share with you in this collection – songs which have brought me joy.'
Also on the playlist is Bob Marley's Could You Be Loved, whom the King remembers meeting when he came to London before his tragic death in 1981 at the age of just 36.
The monarch says of Marley, who would have turned eighty this year: 'I remember when he came to London to perform when I was much younger, and I met him at some event.
'That marvellous, infectious energy, of course, he had, but also his deep sincerity, and his profound concern for his community. I always recall his words 'The people have a voice inside of them'. He gave the world that voice in a way that no-one who heard can ever forget…'
There is also the 1930s tune The Very Thought of You, by Al Bowlly which he says reminds him of his much-loved grandmother 'because she used to play these sorts of music a lot, and also never fails to lift my spirits.'
An 'On Air' sign on the desk of King Charles III who has collaborated with Apple Music
A general view of the Music Room at Buckingham Palace, pictured in 2011
An 'On Air' sign on the desk of King Charles III after Apple Music revealed the playlist
He also highlights La Vie en Rose by the 'superb' Grace Jones, and RAYE, with Love Me Again, whom he describes as a 'great ambassador for British music' and spoke to him recently about her Ghanaian heritage.
'That reminded me that my first encounter with Ghana wasn't actually in Africa. It was in Scotland, when I was eight or nine and the then Ghanaian Prime Minister later President, Kwame Nkrumah, came to visit my late mother at Balmoral Castle in Scotland,' the King recalls.
'He very kindly gave me a bow with a quiver full of rather dangerous-looking barbed arrows – the sort of gift any young child loves – which, of course, I went straight out and fired into a nearby pine tree and then couldn't get the arrow out again.'
His very last song is one of his 'particular favourites' - 'Upside Down' by Diana Ross.
'When I was much younger, it was absolutely impossible not to get up and dance when it was played! So, I wonder if I can still just manage it...?! ' he signs off.
Recorded at his desk in Buckingham palace last month, the King's Music Room can be heard live for free on Apple Music Radio this week and to subscribers on download.
