Lara Stone has been a fixture on the Calvin Klein runway since autumn 2010, when she signed an exclusive contract with the fashion house.

But when Francisco Costa shows his latest collection for Calvin Klein on Thursday afternoon, Stone won’t be part of the model line-up.

Why? It seems Stone has had difficulty securing the US visa required for her to work at New York Fashion Week, she said in a tweet earlier this afternoon.’

‘Soooooooo sad I have to miss #NYFW due to silly Visa stuff.. @thelastmagazine @CalvinKlein #TotesDevd’, she wrote from @LaraStone.

There's nothing new about models with visa problems. The show will go on. But it’ll be a lot less colourful without Stone. Anyone know the US ambassador’s number?