Prue Leith left viewers in disbelief tonight, with many fans struggling to believe she was as old as she said she was.
Prue is 80 years old and while she doesn't make a secret of her age, some Bake Off fans had no idea she was in her eighties.
As she moved around the bakers chatting away to them, viewers were blown away by her stylish outfit and witty demeanour.
Prue wore a pair of statement red glasses and a statement necklace alongside a red top on this week's show.
And many viewers took to social media to praise Prue and to wish they were like her when they were older.
Rhiannon Young said: "If I look and dress like Prue Leith when I’m 80 years old, then I’ll die a happy and HIP lady."
Amy Joanne said: "Still can't get over Prue being 80?!?"
KW said: "Prue is 80!?"
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Ellen Shapiro said: "We had to pause # GBBO and Google in disbelief when Prue said she’s 80. I’d have said early 70s at most, I definitely thought she was in her late 60s. Hope I look and feel anywhere near that good when I’m 80!"
Tonight saw the bakers take on patisserie week in the semi-final.
They created a variety of delicious treats, but some were better than others and there was a lot of tension in the tent.
*The Great British Bake Off continues at 8pm on Channel 4 next Tuesday
