His dad Jeremy posted this picture on Instagram, announcing the birth of his daughter and her name, Bay Bieber. "We welcomed a healthy baby 'Bay Bieber' born at 8:30 a.m." Jeremy wrote in the caption.
He also posted this funny picture of him going into the delivery room, writing "Dr. Bieber to delivery" in the caption.
Justin posted a different picture of his new little sister. "Meet the newest Bieber, my little sister BAY BIEBER," he wrote.
THAT SMILE. Not even a day old and this little girl is killing the game.
There are a lot of things to talk about here, but the most important one is this new little bb's name. Bay Bieber. It's an interesting choice because 1) everyone else in Justin's family has a "J" name and this baby obviously does not, and 2) whenever one of her teachers wants to call her by her first name + last initial they'll have to call her "Bay B," which is either really cute or really...interesting. I'll leave you with this while you mull things over:
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This article originally appeared on Cosmopolitan.com. Minor edits have been made by the Cosmo.ph editors.