Michelle Obama couldn't wait to wish her youngest daughter, Sasha, a very happy birthday on Friday - and she did so with the best photo.
The former FLOTUS delighted her social media followers with a throwback snapshot from when Sasha was a baby.
STORY: Michelle Obama's rare family photo leaves fans doing a double take
In the image, she was cozying up to her little girl who was adorable with her chubby cheeks.
WATCH: Michelle Obama opens up about life at home without Malia and Sasha
She wrote: "My baby has grown into a beautiful, independent, compassionate, highly capable young woman. But you will always be my littlest pea. I'm so proud of the human you are becoming. Love, your Mommy."
Fans were stunned that Sasha was 21 already as many watched her growing up in the White House.
MORE: Michelle and Barack Obama's vast living room inside $8.1million home is gorgeous
MORE: Michelle Obama nailed this wedding dress style 26 years before Princess Eugenie
They commented: "Beautiful," and, "I love this photo," and there were heart-emojis and many people who couldn't get over what an adorable baby she was.
Michelle Obama wished her daughter Sasha a happy 21st birthday
Sasha and her sister, Malia, both live away from home as they conduct their studies and the former First Lady Michelle opened up about their romantic lives recently, revealing that they both have boyfriends that they often bring home.
MORE: Michelle Obama's controversial wedding outfits revealed in unearthed photo
MORE: Michelle Obama makes rare comments about daughters Malia and Sasha's boyfriends
Whilst talking to Ellen DeGeneres on her show, which recently ended, Michelle was reminded of how 23-year-old Malia, and Sasha, 21, had first visited the show as little girls who wanted to see the Jonas Brothers.
© Photo: Getty ImagesMichelle and Barack Obama are incredibly proud of their grown up daughters
"Now they're bringing grown men home,'' the 58-year-old Becoming author said. "Now they have boyfriends and real lives and all that stuff. They have grown up right before our very eyes and they are doing well."
Read more HELLO! US stories here
Like this story? Sign up to our HELLO! Mail newsletter to get other stories like this delivered straight to your inbox.
