Ant McPartlin was the man behind the camera as he filmed Dec's 'breakdown', but reassured fans that all was not as it seemed.
Ant walked into a room to find Dec working at a computer, and turned the camera on him, asking concerned: "Oh no, what's the matter?"
Dec, clearly very confused, replied: "What?"
Ant continues to press Dec on his 'crying', asking if everything was alright: "You seem really upset, is everything ok with you? What are you crying for?"
Dec replied: "I'm not!", to which Ant barely holds in his laughter as he says: "Who has upset you? I'll beat them up if they've upset you!"
Ant captioned the hilarious post: "Having a bawl with this one", alongside the hashtag, #cryingfilter.
Earlier this month, Ant and Dec had been reflecting on their "inspirational" performance in full drag after the Geordie duo won the BAFTA TV award for best entertainment programme.
The presenting duo transformed into Lady Antoinette and Miss Donna Lee as part of a drag queen performance on their ITV show Saturday Night Takeaway in February.
Speaking after receiving their BAFTA TV award, Donnelly, 46, said the pair were "moved by how inspirational people found it".
Dec said: "When we had the idea of doing the drag act, we wanted to do it properly, and we wanted to do it right, and we want to be respectful of the art form.
"We didn't want it to look silly, and that we slap on a bit of lipstick and eyeshadow and then walk out in wonky heels.
"We were like, if we're going to do this, we're going to do it properly because it is a real art form and it's a respected art form."
You can watch Ant and Dec every Saturday night on their hit programme Ant and Dec's Saturday Night Takeaway, airing at 7pm on ITV.