Now, I'm not holding out much hope for this one, as the details are vague and I've got a feeling the only copy on Youtube has been deleted. But here goes...
I remember seeing a clip of a really cute, short haired blonde presenter get pied a few years ago on Youtube. It looked like it was from a UK TV show for Comic Relief/Red Nose Day. She was wearing a white Comic Relief/RND T shirt. She had to answer a question correctly, and if she got it wrong she got pied. As she was struggling to think of the answer, someone waves the pie near her face so she can see it, and she had a great look of shock/dread of the inevitable on her face. The pie was a Shaving Foam on a paper plate pie, and the coverage was really good.
Unfortunately, I don't know what TV Show it was from, and I don't know the name of the girl. As I said, details are sketchy! But if anyone knows which clip I'm on about and knows of a copy, please do share Thanks!
Is it Zoe Ball you're thinking of? The clip itself is slightly different to what you described; she was wearing red and not white, and it was a custard pie and not shaving foam, but definitely worth looking into! It was for Comic Relief many years ago.
She was nominated to go on stage and the person holding the pie plays with the audience whether or not he should pie her. All the while holding the custard pie right in front of her face. Obviously the audience want to see her get pied and inevitably she gets the custard pie in her face. It was very good coverage too. The person doing it really smushed the pie around her face!
Again, while the Zoe Ball clip is great and a classic, it's not the one I'm on about.
The clip I'm referring to is a bit more recent. I couldn't give you an exact year (as I didn't see it live), but at a guess I'd say it was from about 10 years ago?
Also no. I'll be honest, I doubt anyone will be able to name the girl. Like I said, it's pretty obscure. I think it's a case of if you've seen the clip, you'll know what I'm on about. If not, then...probably not.