Sophie Ellis-Bextor charity dance marathon saw her moving non-stop for an entire day and night. The singer raised more than £1m on the BBC’S Children-in-Need annual telethon.
She danced along to the Radio 2 travel news, sang karaoke with Tony Blackburn and changed into a succession of ever-more sparkly dresses.
But she became increasingly tearful as the challenge ended.
"I'm such a mess," she told viewers watching the live-stream on BBC iPlayer. "I can't stop weeping."
Ellis-Bextor started dancing at 09:26 GMT on Tuesday, receiving moral support from friends including Natalie Imbruglia, Tamsin Outhwaite, Gemma Collins and Michael Ball over the subsequent 24 hours.
The star managed to keep her spirits up throughout the night, but "hit a wall for the first time" as she entered the final hour.
"I thought, 'Oh my goodness, maybe I am going to fall into a heap on the ground'. And then I was like, 'Would people feel sorry for me, or would they want their money back?'"
After a "really good pep talk", she persevered through the final stretch, cheered on by her family
After taking her final step - appropriately to the Abba classic, Dancing Queen - the star sank to her knees.
"I want to thank everybody for giving me the opportunity. This has been really special..."
— BBC Radio 2 (@BBCRadio2) November 17, 2021
We are SO proud of you, @sophieEB - you've done it AND you've now reached an incredible £1,009,317! ❤️✨😮 #R2KitchenDisco pic.twitter.com/QyAivfibTn
A former runner-up on Strictly Come Dancing, the star's challenge was streamed live on the BBC iPlayer, as she danced along to tracks by Abba, Beyoncé, Take That and Bon Jovi.
Ellis-Bextor said she chose the majority of the music herself, to avoid a mid-performance slump.
"If I hear something that I don't want to listen to then it's like kryptonite and all my energy will drain into the floor.
"So, the music is my companion, my conscience, my friend."
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