Prince George is turning 4 today (July 22). The Duke and Duchess of Cambridge released an adorable official portrait of the birthday boy. Here are some more classic Prince George moments to celebrate his special day. Like the time he got super excited about a cuddly toy or when he couldn't cope with how fun these balloons were. Remember when he gave the cutest little wave before meeting his baby sister? Or the time he got bored waiting for the flyover? Happy Birthday Prince George!