Aww, they're little material girls!

Madonna shared this cute video of her newly adopted twin daughters singing "Twinkle Twinkle Little Star" in their pajamas over the weekend, and it looks like they're happy with Mama Madge!

The pop icon announced that she had officially added Ester and Stella, 4, to her brood earlier this month.

"I can officially confirm I have completed the process of adopting twin sisters from Malawi and am overjoyed that they are now part of our family. I am deeply grateful to all those in Malawi who helped make this possible, and I ask the media please to respect our privacy during this transitional time. 🙏🏻 Thank you also to my friends, family and my very large team for all your support and Love! 💘🦋🦋🌺🌼🌸🦋🦋🙏🏻🙏🏻✈️✈️😂🤣🦋🦋♥️🌺🎈♥️," she wrote on social media.

They had been living in an orphanage for two years before the 58-year-old filed to become their legal parent. Their father is still alive, but their mother died a week after child birth in 2012.

Now they're living large in a $40 million penthouse on the Upper East Side!