The former 'Doctor Who' and 'Torchwood' star fell off his stool in spectacular style as he joined the ladies on the ITV daytime chat show.
John then popped his legs up on the desk to reveal he was wearing a pair of red stilettos.
However, he became unsteady, and before he could catch his balance, he was tumbling backwards off his stool behind the desk.
Luckily, John was ok, with the 'Loose Women' Twitter account later posting a video of what happened in the aftermath.
While a 10 out of 10 fall, it still hasn't topped our favourite ever 'Loose Women' tumble, which comes courtesy of Sherrie in the video below:
'Loose Women' airs weekdays at 12.30pm on ITV.
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