King Charles' Coronation concert at Windsor Castle promises to be a night to remember - but some big names have turned down the opportunity to make an appearance.
Some of those who will be taking to the stage later tonight include Take That, Lionel Richie and Katy Perry.
And while Buckingham Palace have promised 'global music icons and contemporary stars' will be showing their faces, some of those who were reportedly invited apparently turned down the offer to perform.
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Elton John
Elton John has been chummy with members of the Royal Family for years, and famously performed at the funeral of Princess Diana in 1997.
However, the legendary music star will not be tickling the ivories at King Charles' Coronation concert due to a conflict in schedule.
John's team confirmed the invitation to Rolling Stone, but explained: "Due to his European tour, which sees him performing in Germany the Friday before then again soon after the Windsor concert, he isn't able to make the dash to the UK work."
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John is not performing on May 7, but is taking to the stage in Hamburg the following night.
Harry Styles
If it's not a sushi restaurant - or one of the other hundreds of venues Styles has played recently - then the former One Direction star apparently can't make it.
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Styles looks to have been having some time to himself after his show in Tokyo on 29 March, and while he doesn't appear to have another concert scheduled until 13 May, he reportedly declined the chance to fill the time by singing for the new monarch.
A source familiar with the matter claimed the ongoing tour was one of the reasons for declining, and told The Sun that Styles couldn't get 'key band members together as they'll be on much-needed downtime'.
The Spice Girls
The Spice Girls defined 'Cool Britannia', but there'll be no Union Jack dresses adorned tonight in Windsor - at least not by Geri Halliwell.
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Charles has previously made clear that he's a fan of the iconic girl group, saying during a meeting with them in South Africa: "It is the second greatest moment in my life. The greatest was the first time that I met them."
So he's obviously a fan.
It's understandable, then, that the King might want them to spice up his coronation day, but a source told The Sun the group were unable to get together to rehearse.
Kylie Minogue
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Kylie may come from the Land Down Under, but she's a British icon through and through.
Unfortunately the 54 year old Aussie star won't be appearing at the long awaited concert.
Despite having previously performed for Queen Elizabeth's birthday in 2018, Minogue appears to be steering clear of the coronation.
A source told MailOnline: "Kylie has been an honorary Brit for many, many years, and admires the royal family and everything that they do.
"But she is also a passionate Australian and has read the room in a country that could very soon become a republic," the source said.
Adele
She's as British as Shepherd's Pie but Adele is also a no-show for King Charles' concert.
Apparently, the Tottenham born superstar was too busy to make an appearance, which is understandable as she is...Adele.
So, suffice to say, a lot of missed opportunities here, but hopefully those who did accept the invitation will put on a night to remember.
Featured Image Credit: Doug Peters / PA Images / Alamy Stock PhotoTopics: Music, Coronation, Royal Family, Celebrity