Indian-origin entrepreneur Shivon Zilis marked Elon Musk’s 54th birthday on June 29 with a nostalgic post on X, formerly Twitter. She shared a then-and-now collage showing Musk with a clown-shaped cake from his past birthdays alongside a recent picture featuring a similar cake.
“Happy birthday rocket man,” wrote Zilis in the caption, celebrating the birthday of the tech billionaire and Neuralink co-founder.
Happy birthday rocket man ✨ pic.twitter.com/rWH4SHq3ad
— Shivon Zilis (@shivon) June 29, 2025
Zilis and Musk’s Family Life
Zilis, an executive at Neuralink, shares four children with Musk — twins Strider and Azure (born November 2021), daughter Arcadia, and son Seldon Lycurgus. While the children didn’t appear in this birthday post, they occasionally feature in photos on her X account.
Zilis, born to a Punjabi mother and Canadian father, holds a unique place in Musk’s personal life. A recent Wall Street Journal report described her as the “most prominent of Musk’s mothers,” highlighting her closeness within Musk’s circle.
Musk’s 54th Birthday: Celebration and Criticism
While fans and family marked the day with warmth, Elon Musk’s birthday also saw protests across North America, according to a CBC report. Demonstrators reportedly raised concerns about Musk’s businesses and influence.
Musk’s mother, Maye Musk, also posted a heartfelt tribute featuring a photo collage. “Happy birthday Elon Musk. My genius boy. Thank you for 54 years of fun, sleepless nights, excitement, surprises and entertainment. So proud of you,” she wrote.
Musk’s Expanding Family and Views
Musk, who has children with multiple women, has often voiced his support for population growth, once saying he wants to “repopulate the Earth.” His children with Zilis are part of his growing family across several relationships.