Dance Dance Dance is a pre-recorded show, but it seems that didn’t even stop it from airing a rather naughty word.
Chloe Gill - who is dancing with her JLS husband JB Gill - had just finished her solo dance to Sax by Fleur East.
And, as she came over to speak to presenter Alesha Dixon, it looked very much like she said: “F***king hell!”
One viewer asked: "Did Chloe just say F**king Hell? Lol.. #ddduk."
However, it wasn’t acknowledged by the Britain’s Got Talent judge or anyone else on the show.
Mirror Online has contacted Dance Dance Dance for comment.
Sadly, JB and Chloe missed out on a spot in next Sunday's final by just half a point, with a score of 81 compared to Lucy-Jo Hudson and Rohan Pinnock-Hamilton's 81.5.
Jonny Labey and Chrissy Brooke soared ahead with 89.5 out of 90 – by far the highest score of the series.
Holding back tears, Chloe told Alesha: "I have had the most amazing time.
“People behind, all the choreographers, the judges, working with my husband, honestly it's been the best experience of my life and I want to thank you all so much. Thank you."
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She added: "I am so proud of my husband, not being a dancer, and coming out every week and absolutely killing it. I'm so proud of you."
JB told co-host Will Best: "To support Chloe, having danced and come back into it after such a long period away from her art and from what she's grown up wanting to do, it's been an absolute pleasure.
"We thank God for this opportunity to do it together as well, and represent our family and do everyone proud."
*The Dance Dance Dance final is on ITV1 next Sunday