This morning Kate Middleton turned heads while visiting the Royal Marsden Hospital in South London, with husband Prince William. Now, don't get in a panic...the Duchess and Duke of Cambridge are perfectly healthy and were visiting the hospital on official royal duty. (Though the all-white look was a bit nurse-like, we're pretty sure she wasn't there to pass pills either.)Middleton sported a characteristically body-hugging dress by Amanda Wakeley (who was one of Princess Diana's favorite designers) and shoes by (you guessed it) LK Bennet. Kate and Wills toured the hospital, met with staff and visited with cancer-stricken children. Coincidentally (or not) Princess Diana's first solo outing was to the Royal Marsden Hospital in 1982, so it was doubly fitting that Middleton chose a dress by Wakeley.