Holly Willoughby shocked co-host Phillip Schofield by making a mess of the set on This Morning.
The 38-year-old had finished a segment with the graffiti grannies who have found a new lease of life tagging parts of Scotland.
As part of the item, Holly and Phil used stencils to immortalises their faces on the studio wall with spray paint.
While it was successful and the presenters managed to keep the paint off their clothes, Holly ruined her Gianvito Rossi nude heels.
Following a commercial break, Phil pointed out to viewers how she had walked purple paint all over the studio with close-ups of the damage.
In her own defence, Holly joked: "It is not like I have a graffiti habit, I was doing it for something on the show."
Bisexual couple sent on holiday to island where gay sex is illegal
Thankfully she did not get any on her £300 Ganni dress which she wore to celebrate the birth of the Royal Baby.
Posting a picture to her Instagram page she said in her caption: "Happy Tuesday... Congratulations @sussexroyal on the arrival of your baby boy... what wonderful news. Enjoy these first precious moments, there is nothing quite like it... #royalblue"
Fellow presenter Kate Thornton commented on her post saying "beautiful".
Fans of Holly commented on the look and one, johnkent8739, said: "Such a beautiful dress Holly you look so beautiful and elegant."
*This Morning is on ITV1, weekdays from 10:30am
