Gang's all here!
Queen Elizabeth II will turn 90 tomorrow (April 21st), and to celebrate, the Royal Mail released new stamps featuring the monarch with her three heirs - Prince Charles, Prince William and Prince George, respectively.
Royal Mail photographer Ranald Mackechnie had to make sure everyone was at the same height and spaced evenly apart, for stamp purposes.
That included George, who stood on "high-density foam blocks" while keeping close to his dad, according to the Daily Mail.
The family, Mackechnie said, was "amazingly relaxed," and all four made it a light-hearted sitting.
"They were comfortable with one another and behaved like any family with their conversation and jokes. It was much more relaxed than when I've tried to take pictures with my family," the photographer said.
"The joy and energy coming out of George was fantastic. It lifted the whole shot and lifted the afternoon. He was on top form. He was quite fascinated by the lights. He took it all in his stride."
“He was fascinated by my lights and all the kit, and he was quite happy standing on the blocks," Mackechnie added.
"I took maybe 80 or 100 shots, but when I saw this one I knew straight away that was it.”
Her Majesty is the first British monarch to celebrate a 90th birthday (she's the 40th to reign since William the Conquerer).
For the photoshoot, George wore a Rachel Riley shirt and short set with Amaia knee socks and Start-Rite shoes, the same outfit he wore when the Duchess of Cambridge took pictures of him holding his one-month old sister, Princess Charlotte back in June.