Taking 150 children to watch a production of The Lion, The Witch and The Wardrobe in London, Kate looked thrilled be involved with the charity outing after becoming a patron of The Art Room in January.
Keeping her look low-key for the secret event, Kate channelled Spring/Summer 2012 colour trends with a teal dress from Zara.
To finish her outfit the Duchess added a fitted black jacket from Whistles, an Anya Hindmarch clutch bag, and those signature loose bouncy waves.
Held in a tent reaching 85 feet in Kensington Gardens, Kate apparently made her way to the event on foot from Kensington Palace, despite wearing towering black heels.
While we love Kate’s elegant style, we might be starting to admire her stiletto stamina a little bit more!
What do you think of Kate’s theatre look?