Tesla's Elon Musk and musician Grimes welcome 2nd baby named 'Y'

SAN FRANCISCO (KGO) -- Elon Musk and Grimes have welcomed another baby.

Grimes revealed the baby was born via surrogate in a recent interview with Vanity Fair.

RELATED: Elon Musk, Grimes announce birth of son, X Æ A-12

IT'S A BOY! Elon Musk has announced the birth of his first child with singer Grimes.

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The couple have named her "Y."

You may remember, they named their son "X" after his birth in May 2020.

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To comply with California's state law, the Tesla CEO Elon Musk and musician partner Grimes have changed their newborn son's name to comply with California's law.