Beyonce in Julien Macdonald dress

Beyonce in Julien Macdonald leotard on Good Morning America, 2011

With 59 dates in her Mrs Carter Show World Tour diary, Beyonce's going to need one seriously hard-working wardrobe, and it seems she's now settled on the best man for the job of creating them.

Bey is said to have asked Julien Macdonald to design her costumes.

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The pair first struck up a relationship in 2011, when Mrs Jay-Z donned three of Julien's designs in one week while on tour, including a daring bright yellow fishnet leotard. Her appreciation of the designer hasn't let up of late, as he recently dressed her in a gold playsuit for her New Year's appearance in Vegas.

We've already been given a hint that Bey's wardrobe will be a regal affair - given the first promo shot of the tour, so we're predicting lots of tassels, feathers, jewels and whole lot more. We're sure Julien's up to the job!

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By Hayley Spencer