The picture is reminiscent of Bey’s pregnancy announcement, which shook the internet in February. Within 30 minutes of debuting on Instagram, the twins’ debut had received more than 1 million likes.
The twins, who turned 1 month old on Thursday, were the latest addition to Beyoncé and Jay-Z’s family, alongside 5-year-old daughter Blue Ivy.
The musical superstars filed trademark applications in the U.S. for the twins’ names late last month, TMZ reported. The pair did the same for Blue Ivy when she was born.
A few hours after Beyoncé posted the photo, her mom, Tina, celebrated the birth as well.
“So Happy my baby shared a photo of her babies with the world ️️️proud grandma hello Sir Carter and Rumi Carter️️ 7/13/2017 Boy and girl what a blessing ️,” she wrote in an Instagram caption, which helped clarify that Sir’s full name is “Sir Carter,” not “Sir Carter Carter.”
This post has been updated to include mention of Tina Knowles’ own Instagram post.
This article originally appeared on HuffPost.