The pair were filmed dancing in front of the green screen to The Weather Girls’ hit track It’s Raining Men.
They sang along to the hit in Welsh, as Carol enthusiastically showed off her moves and burst into laughter over their antics as the clip ended.
Describing the moment, the mathematics expert wrote: “We Are The Weather Girls… And Have We Got News For You…
“IN WELSH Mae Bwrw Glaw Dynion = It’s Raining Men @carolkirkwood @OwainWynEvans @S4C @aranjones @1GarethWynJones #Iaith2020.”
Good Morning Britain airs weekdays at 6am on ITV.