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We've been on Kate Middelton-watch ever since the Duchess touched down in Wellington for her New Zealand/Australia tour with Prince William. What will she wear next? Matchy-matchy twinset or sellout dress from one of the season's most-wanted designers?

But it seems Wills has been left a little bemused by Kate's sartorial choices. Blinded by the brights would perhaps be a better way of putting it.

When Kate stepped out in a yellow Roksanda Ilincic dress she sparked a wave of admiration from fashion commentators.

The Duke of Cambridge? Not impressed, apparently. "William said I look like a banana", revealed Kate, when she spoke with Heather Easton, one of the many well-wishers who lined the streets around the Sydney Opera House.

Considering this dress currently retails at £950, that's one expensive banana, Wills.

But this is not the first time William has commented on Kate's tour style.

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A few days ago while they were in New Zealand, another fan in the crowd - this time Bev Hayes, 68, from Cambridge - revealed that Wills wasn't keen on Kate's Erdem coat.

When Bev complimented Kate on the emerald-green number, the Duchess replied that "she liked it but Prince William thought it was a bit bright."

Ouch! What do you think of Kate's royal tour wardrobe? Tweet us @CosmopolitanUK.

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