Phillip was in hysterics as tried to continue with his presenting duties, but was distracted by an off-camera sight.
The 55-year-old laughed: “I’m sorry, I know, but I’m just laughing because Sarah Millican’s walking through.”
Phillip added: “She’s doing the best tip-toe acting I’ve ever seen!”
As the presenter tried to compose himself, Holly claimed that Sarah had been “busted” when she left the studio with a cheeky smile.
It isn’t the first time Phillip Schofield has been unable to control himself when he was put in front of a graffiti portrait of himself during yesterday’s instalment.
The silver fox’s face said it all, as he managed to say that he “loved it”.
Viewers were in complete turmoil as they flocked to Twitter to air their thoughts on the mural.
This Morning airs weekdays on ITV from 10.30am.