You may have heard by now that Beyoncé, 35, and JAY-Z, 47, welcomed a set of twins, making their five-year-old daughter, Blue Ivy a big sister — and the family went poetic with the monikers!

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The couple even filed trademarks (with the same people who helped secure legal rights for Blue Ivy) for the names “Sir Carter” (for the boy) and “Rumi Carter” (for the girl), likely referencing 13th-century Persian poet Rumi, and one of his most famous poems.

B officially announced the names on Instagram, one month after the twins’ birth on July 14. Posing with her newborns, the now mother-of-three looks flawless…unsurprisingly.

Watch the video below to see her adorable snap:

It was previously reported that Blue helped pick the names — so she must be one well-read little lady!

“Blue Ivy is relishing the role as a new big sister. She has been keeping mommy company in the hospital and has even helped in the naming process of her new siblings,” a source recently told Hollywood Life. “Blue is happy and can’t wait to take the new babies home to play with.”

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As In Touch previously reported, the babies had been in the hospital “under the lights” following their premature birth, but have since come home.

According to one of our insiders, the family’s special day was plagued with “a lot of drama” — and naturally, it was because of her father, Mathew Knowles.

beyoncé mathew knowles getty images

(Photo Credit: Getty Images)

The Carters and company “didn’t want him there because they don’t trust him not to leak private information about the twins — or even worse, take photos,” said a source, adding Bey’s mother, Tina Lawson, had “some pretty harsh words for Mathew.”

It appears as though their fears came true since he wound up confirming on social media that his daughter gave birth, and in turn, the Beyhive came out STINGING.

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We really hope someone tells us these aren’t the actual baby names but in the meantime…

Scroll through the gallery to see the mother-of-threes’ best bump pics.