Stepping out for a recent Conservative party conference, Samantha Cameron found herself in the spotlight for wearing an M&S frock, costing just £65.
And while the 38-year-old had opted for an off-the-peg outfit, discovering Samantha's dress of choice involved much more than just popping into her local store.
The grey and cream 1940s-style number was created for the high street shop's limited edition collection - only 2000 were made for M&S's 125 anniversary celebrations – which sold out within days of going on sale.
Not to be deterred, the politician's wife headed straight to the top – and asked chief executive Sir Stuart Rose to help her find one.
After staff searched the company's 600 nationwide stores, a sample size in the dress was located, but in a 14 – two sizes too big.
So one of the store's dressmakers tailored it to fit Samantha's slender size 10 frame and the finished product was delivered in time for the conference.
"We bumped into Samantha and she said she loved the dress, I think she had seen it on Myleene Klass," an M&S spokesman said.
"She was very pleased and paid for the dress. We often help women in the public eye, including Sarah Brown."
Photo: ę Getty Images
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