Did Beyonce and JAY-Z's twins' names just get revealed?

Welcome to the world, Rumi and Sir Carter?

Those are the names it appears Beyonce and JAY-Z gave their twin babies in recently filed trademark paperwork obtained by ET. The superstar couple welcomed a boy and girl earlier this month and have yet to officially reveal their names.

WATCH: JAY-Z Is All Smiles at the Gym After Twins' Birth and New Album Announcement

According to the docs, first reported by TMZ, Beyonce and JAY-Z's trademarking team has filed the legal documents to secure the rights to the names Rumi Carter and Sir Carter.

The trademarks could be used for products like fragrances, cosmetics, key chains, baby teething rings, strollers, mugs, water bottles, hair ribbons, playing cards, tote bags, sports balls and rattles and novelty items.

RELATED: JAY-Z Seemingly Addresses Beyonce's 'Lemonade,' Becky & That Infamous Elevator Fight on New Album '4:44'

Just last week, Beyonce's team hit a setback in trademarking the name of her and JAY-Z's first child, Blue Ivy.

See more in the video above.

PHOTOS: Look inside the couple's big estate

Beyonce and Jay Z rent palatial estate for $400,000 a month
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Beyonce and Jay Z rent palatial estate for $400,000 a month

The Carter's new digs come with a backyard fit for five (hundred).

(Image credit: Trulia)

 An open floor-plan living area is just one of the estate's many treasures.

(Image credit: Trulia)

Okay, even the breakfast nook has floor to ceiling windows and a spectacular ocean view. 

(Image credit: Trulia)

The formal dining room features high, elaborate ceilings and two ultra-glam chandeliers. 

(Image credit: Trulia)

When you live in a $54.5 million home, gutters are complimented by ornate tile work. 

(Image credit: Trulia)

An in-house movie theater for Netflix and chill. 

(Image credit: Trulia)

The gourmet kitchen is all done up in Calacatta marble and luxury appliances. Swoon. 

(Image credit: Trulia)

Bey is so happy she's not pregnant anymore. 

(Image credit: Trulia)

This chic sitting area doubles as a music room. 

(Image credit: Trulia)

Every 16,107 square foot estate deserves a jaw-dropping entrance. Okay, we're officially sold. 

(Image credit: Trulia)

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