The world watched as Kate Middleton went into labour with her third child, but it was Princess Charlotte who stole the show.
The 3-year-old seemed at ease in front of the press as she entered the Lindo Wing at St Mary's Hospital to meet her new little brother, reports the Daily Mail.
Her little royal wave sent Twitter users into meltdown as they commented on how cute the "professional" young girl was.
Prince William went to collect his two eldest children to meet the newborn before swiftly returning to the hospital with them in each hand.
