PADDY McGuinness and Alesha Dixon were left open-mouthed and with their heads in their hands after being faced with a completely naked woman on TV.
The mortified telly stars were both guests on Live: Late Night Lycett when they were suddenly surprised with a 'nudist spa' segment.
The C4 show's host Joe Lycett began the segment by going live to a video link of 80s pop star Sinitta relaxing in a spa.
She was wearing a white robe and slippers and was having a manicure.
But seconds later, a completely naked man entered the spa with a drink before handing it to the So Macho singer.
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Moments later, a large group of nudists burst into the spa before making themselves at home in the shower and on the loungers.
It transpired that Sinitta was supposed to be at a nudist spa for the skit and Joe joked that his show's crew were unable to place 'censored' tags over the all the nudists' private parts.
Britain's Got Talent judge Alesha and Top Gear star Paddy were so shocked by the scenes they were unable to hide their embarrassment.
Both gasped and laughed nervously while trying not to look at Joe's live broadcast of the spa on a telly in the studio.
Paddy even turned around completely before burying his head into his chest.
Fans were shocked too - but most found it hilarious.
Writing on X, formerly known as Twitter, one tickled viewer mused: "Oh my god Paddy's face, the cringe hahahaha!"
Another added: "This show is class and the celeb guests reactions are priceless!"
A third wrote: "Crying with laughter here! @paddymcguinness' face!"
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And someone else said: "Literally choking with the Sinitta sketch!"
This weekend, Alesha will be seen on TV in slightly less saucy surroundings with the return of Britain's Got Talent.
The star will be joined by her fellow BGT judges Simon Cowell, Amanda Holden and Bruno Tonioli as the first two episodes air across the entire weekend.
