(CNN) - What are the names of Beyonce and Jay Z's twins?
Well, we may have an answer.
There's been no official confirmation of the names, the gender of the twins or even that they've been born, but it's apparently all been revealed.
TMZ uncovered a trademark filing by the famous couple for Sir Carter and Rumi Carter. Jay Z's real last name is Carter.
The trademark was requested for items like teething rings, strollers, cosmetics and novelty items, meaning if things are sold to commemorate the births, Bey and Jay are poised to get a piece.
Jay Z released his newest album, "4:44," last week
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