AN X-FACTOR legend has been slammed over an "offensive" post about Queen Camilla and Princess Di just hours before the Coronation.
Diana Vickers took to Instagram to share the tasteless clip, alongside her podcast pal Chiara Hunter.
The post shows the pair donning plastic crowns as they sing a song about Queen Camilla and Princess Diana just hours before King Charles' Coronation.
The video, which was posted on both of their Instagram accounts, is captioned: "QUEEN CAMILLA (the ultimate long game) For all you side pieces out there... stay focussed".
Vickers and Hunter, known by their fans as Ki and Dee, posed up in front of the camera and began their made up song which has been dubbed "offensive" after making its rounds on social media.
They began with: "Ladies, this is a lesson for all of you side pieces out there, stay focussed.
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The pair then overlaid a clip of Princess Diana saying: "Well there was three of us in this marriage," before adding "but only one can be Queen - Camilla".
They then begin singing about Camilla and Charles' secret love affair, claiming that the pair "were always destined for each others heart".
"And Diana said 'love me love me love me' I want to work on this marriage, and Charles was like 'ABSOLUTELY NOT' and we know what happened in Paris...
"Chemistry is chemistry, love is love, kept apart by an institution they said CHARLES SHE'S NOT ENOUGH - a little side piece divorcee, said she couldn't be Queen but she's doing it anyway", they continued.
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When the pals get to the chorus of their song they shocked listeners by saying: "Coz ladies persistence is everything, C-A-M-I-L-L-A - what does it spell? Winner.
"C-A-M-I-L-L-A - what does it spell? Inspiration".
The song is over two-minutes long in which the pair display a shot of Princess Di in her iconic revenge dress with "waste of time" scrawled over it in red pen and urge "side pieces out there to stay focused".
They end the difficult-listen with: "C-A-M-I-L-L-A - what does it spell? Diana's worst nightmare.
"For all you side pieces out there, never give up on that dream and long live the Queen," before laughing into the camera and cutting the recording.
The video quickly went viral on social media, with royal fans left shocked at the levels of "disrespect".
One person took to Twitter to repost the video and wrote: "Some mighty unhinged content from Diana Vickers on her Instagram".
The post racked up whopping 24.5k views and internet users flooded the comment section with their thoughts on the pair's song.
One wrote: "I don't get why this is funny... I find it offensive".
Another said: "ABSOLUTELY NOT should've been our Di".
A third commented: "This is horrific. What some people will do to go viral amazes me".
One more chimed in: "The Diana pic with “waste of time” splashed across it is craaaaazzzzzyyyyy".
Posted just hours before The King's Coronation, the song which dragged Princess Di's name through the mud left many of her long-time fans upset.
A Diana fan wrote: "QUEEN DIANA FOREVER!!!!!!" under the Instagram post.
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Another came to the Princesses defence and said: "Biggest fan of yous but I'm so conflicted cos Diana is the absolute Queen".
Diana Vickers was a semi-finalist on The X Factor in 2008 and now hosts the Ki & Dee podcast with Chiara Hunter.