ITV viewers couldn't believe what they were seeing when they tuned in to meet the class of 2021 on Strictly The Real Full Monty.
The new installment of the emotional show, which sees celebs work towards baring all to raise awareness of life-saving cancer checks, kicked off with the line-up getting to know each other and receiving their saucy costumes.
And Blue singer Duncan James caused jaws to drop when he stripped off to a tiny thong within minutes of the show starting.
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Duncan gave a sneak preview to Loose Women star Brenda Edwards who visited his hotel room and asked him "what did you get?"
She gasped as he disrobed to reveal the leopard print thong.
The class of 2021 also includes Christine McGuinness, former Strictly Come Dancing pro James Jordan, and Love Island's Demi Jones and Teddy Soares.
But Duncan was the talk of Twitter as he sent viewers into a meltdown.
@alicedenicejohn tweeted: "Omg Duncan James that’s too much #thefullmonty."
@DavidMackayyy said: "Thank you to ITV for these shots of Duncan James’s a*** #StrictlyTheRealFullMonty."
@deano_unlocked tweeted: "Hahahahahaha who’d have thought that 5 minutes in we’d get to see Duncan’s pubes? #StrictlyTheRealFullMonty."
@ShirleighShirlz said with an astonished face emoji: "Duncan James in a thong.
"Nine year old me would be having a meltdown right now! #StrictlyTheRealFullMonty."
Duncan, 43, who shot to fame in 2001 with the boyband Blue, also reduced fans to tears as he told how he was taking part in the show in memory of his friend Sarah Harding.
Girls Aloud star Sarah, from Stockport, passed away after battling breast cancer at the age of 39 in September.
@Shaunlfc4life commented: "RIP Sarah Harding, absolute legend. Great to see Duncan doing this for his friend."
And @tracey_diaries said: "#StrictlyTheRealFullMonty bloody hell I'm all over ... we've had Duncan James in a thong and now the stories. So emotional. I'm in tears here."
The stars all have stories to tell about how cancer has touched their lives or those close to them.
Presenter, choreographer and mentor Ashley Banjo will support the anxious celebs as they take to the dancefloor in Blackpool to perform the full monty in the second episode tonight at 9pm on ITV.
