Kate Middleton’s hen’s party will be held in four venues across London, a source has revealed.

But that is about all the information that anyone has managed to glean about Prince William’s bride-to-be as details have been shrouded in secrecy.

Details of the hen party are traditionally kept secret from the bride, but with the added pressure of keeping the world guessing too, Pippa Middleton has gone to great lengths to keep the location of the do under wraps.

Even the attendees are being kept in the dark until the actual day.

“None of the girls know where they will be going – and won’t until the actual day,” the source told Daily Mail.

“Everything is being shrouded in secrecy.”

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The newspaper suggested the chosen venues may include Eighty-Six, a trendy bar in Fulham, West London, or Public, Guy Pelly’s latest nightclub, located down the road in Chelsea.

Pippa, who is a Party planner, is also reportedly organising a discreet, Dirty Dancing-themed bash at the Middleton family home in Buckleberry, Berkshire.

Pippa will be maid of honour at the Royal Wedding on April 29.

They day comes before the wedding of William and Kate’s old university friend Alexis Crow.

Crow is getting married in Texas, and many of their mutual friends from their St Andrews days have been sheepishly phoning to say they can no longer attend.