‚ÄčHappy 90th Birthday, Queen Elizabeth II!

All together now: Awwwww!

On April 19, Buckingham Palace released this photo of George with proud papa William, Grandpa Charles and great-grandmother Queen Elizabeth II in honor of the monarch's 90th birthday on April 21. It was shot last year in the White Drawing Room in Buckingham Palace.The photo, shot by Ranald Mackechnie for the Royal Mail (the U.K.'s postal system), may be the most adorable one yet taken of George and shows him decked out in a white button-down shirt, blue short pants. Our favorite detail: propping the tyke up on a pile of blocks to put him at eye level with the grown-ups. (The photo will be used in a commemorative stamp collection.)It also made it a little easier for him to reach his dad's hand.