Kate Middleton and Prince William, the Duke and Duchess of Cambridge, may be busy getting ready to tour Australia and New Zealand in April - but that didn't stop them from making an appearance at close friend's birthday bash at the weekend.
Babysitter? Check. Low-key casual ensemble? Check. Kate opted for a black mid-length coat tied at the waist, pretty print dress and black ankle boots. See the look here.
Imagine being a guest at this swanky gathering and bumping into THE Duchess of Cambridge. Not just your average Saturday night - oh to have royal connections.
LOVE THE ROYAL FAMILY? Take a look through this amazing gallery of them on duty...