Anton Du Beke was left bewildered after stumbling over a question about dance on Who Wants To Be a Millionaire's celebrity special on Sunday.
The beloved Strictly judge and professional dancer, 58, was quizzed by Jeremy Clarkson in a bid to raise money for their charity The Sick Children's Trust.
Despite the ballroom star dominating the first few rounds of the ITV game show, he ended up failing a £32,000-question related to his own field.
The question read: 'Which Tony-Award winning musical features a mash-up called Elephant Love Medley, with the possible answers being Hairspray, The Book of Mormon, Moulin Rouge! and Six.
Struggling to come up with the correct answer, the author asked he audience to use his 50/50, but eventually chose The Book Of Mormon as his ultimate choice.
'If i get this wrong, I'm going to give the charity £15,000 of my own money,' Anton sweetly added.
Anton Du Beke was left bewildered after stumbling over a question about dance on Who Wants To Be a Millionaire's celebrity special on Sunday
The beloved Strictly judge and professional dancer, 58, was quizzed by Jeremy Clarkson in a bid to raise money for their charity The Sick Children's Trust
But host Jeremy, 64, gave Anton the bitter news: 'That's just cost you £15,000,' and revealed Moulin Rouge! was instead the right answer.
'You wait until I tell my wife!,' poked fun the Strictly alum, while the TV presenter quipped: 'I'm afraid this is going to go on television.'
It comes after another shocking moment on the show last month when one guest burned through two lifelines within the first five questions.
The special featured Jools Holland, Nina Wadia, and Ugo Monye - aiming to win big for charity.
But music legend Jools struggled early on, using both his 'ask the audience' and 'phone a friend' lifelines by the time he reached the £1,000 question.
At the fourth question, where he would earn £500, Jools was left baffled when asked: 'In March 2020, who began hosting online fitness workouts for children under the title 'P.E. with Joe'?'
Jools relied on the audience, who correctly identified fitness influencer, Joe Wicks.
Moments later, Jools called a friend to help with a £1,000 question about Alfred Hitchcock's Psycho tagline from the infamous shower scene, eventually landing on: 'Check in. Unpack. Relax. Take a shower.'
The tricky query read: 'Which Tony-Award winning musical features a mash-up called 'Elephant Love Medley,' with the possible answers being Hairspray, The Book of Mormon, Moulin Rouge! and Six
Struggling to come up with the correct answer, the author asked the audience to use his 50/50, but eventually chose The Book Of Mormon as his ultimate choice
But host Jeremy, 64, gave Anton the bitter news: 'That's just cost you £15,000,' and revealed Moulin Rouge! was instead the right answer
Despite the shaky start, Jools later faced a music-related question about The Spice Girls, where he was asked: 'The maiden name of which Spice Girl was also the name of two US presidents?'
However the music legend, who did appear in the pop groups 1997 film SpiceWorld The Movie, still seemed unsure, asking if there was a 'President posh'.
He admitted that once sat in the chair, all the things he thought perfectly well disappeared from his mind, with Jeremy agreeing that it 'turns your brain to mush'.
Jools enlisted help again - this time from the show's host - and when the two worked out the correct answer, the pianist pretended to wipe his brow and fall off his chair in exasperation.
