Amanda Holden and Simon Cowell surprised children at her daughter's school by judging cakes at their bake sale.

Amanda Holden had a surprise for the kids

Amanda Holden had a surprise for the kids

The 'Britain's Got Talent' co-stars are more used to having their say on all sorts of weird and wonderful performers, but they took inspiration from 'The Great British Bake Off' as they tried out the bake goods on offer.

Speaking on 'Heart Breakfast' this week, Amanda said: "They asked me at my daughter's school, would I go and judge some cakes, and I was like 'Hmm I'm going to have to think about it'.

"So yes they had a tent, it was fantastically set up, all the kids making cakes. They were all sort of given sort of different themes. My favourite cake was a cross country run.

"It was a bright green cake and they’d made a run track out of chocolate drops and I thought there were turtles running on the track but they weren't.

"They were humans and it had like a finish line, but that was one of my favourites."

The 52-year-old star - who has daughters Lexi, 17, and Hollie, 11, with husband Chris Hughes - revealed she was in the middle of judging the cakes "on the appearance and sort of creativity and team effort" when 'BGT' boss Simon walked in as an added surprise.

She revealed: "They lost their minds, these kids! And he came in, armed with a fork and then we sort of decided the winner between us based on taste."

There was an awkward moment earlier in the day when Amanda was faced with "an abomination" of a cake, although thankfully it tasted a lot better than it looked.

She said: "There was one sort of Christmas cake that looked an abomination, there were only two people in this team.

"And I did feel bad for them and it looked awful, and I thought 'Oh my god I’m going to have to put my fork in that and eat that' and it was actually a very good sponge."