Elon Musk’s Estranged Daughter Speaks Out After Learning He Welcomed Baby No. 14

Elon Musk‘s daughter is reacting to the news of her new half-sibling.

After the Tesla founder, 53, confirmed that he welcomed his 14th child, his fourth with Shivon Zilis, on social media, his estranged daughter Vivian Wilson, whom he shares with his ex-wife, Canadian author Justine Wilson, shared a TikTok of her reacting to the news.

In the post, the 21-year-old stitched one of her previous videos, which poked fun at the way she found out about Musk’s other children, with a close-up video of her eye.

“This is already outdated nevermind 💀,” she wrote in black text over her video. In the caption, she added, “Technically it was through Threads this time though.”

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Related: Elon Musk’s Estranged Daughter Says She Learned About Her Reported New Sibling, the CEO’s 13th Baby, Through Social Media

In Vivian’s original TikTok post, which she shared on Feb. 15, she said she discovered through Reddit that author Ashley St. Clair welcomed a baby with her CEO father — his 13th at the time.

“Wow, if I had a nickel for every time I found out I had half-siblings through Reddit, I’d have two nickels … which isn’t a lot, but it’s weird that it’s happened twice, right,” she wrote over the seconds-long clip.

In a follow-up post, Vivian, who came out as transgender in July 2022 and then legally changed her name to drop the Musk surname months later, detailed the other instance when she learned she had a half-sibling through Reddit.

Musk first became a father in 2002 when his ex-wife Wilson welcomed their son Nevada Alexander, who tragically died at 10 weeks old. The two went on to have five more children: twins Vivian and Griffin, 20, and triplets Kai, Saxon and Damian, 19.

In 2020, two years after Musk and singer Grimes were first linked, the two announced they had welcomed their first child, X Æ A-12, together. The former couple share two more children, a girl, Exa Dark Sideræl, and a boy, Techno Mechanicus. A few weeks before the arrival of their second child, the tech CEO also secretly fathered twins, Strider and Azure, with Zilis, who’s an executive at one of his companies, Neuralink, in November 2021, according to court documents published by Insider. The pair then welcomed daughter Arcadia in February 2024.

In February 2025, author St. Clair revealed that she and Musk had welcomed a child. Zilis then announced that she and Musk had secretly welcomed baby No. 4, son Seldon Lycurgus, though it’s unclear when.

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