height="660" width="660" border="0" alt="Elon Musk, Breakthrough Prize Ceremony, 2024" align="left" hspace="5" />
Elon Musk's eldest child with ex Grimes, X Æ A-Xii, is all smiles in a new pic his dad shared on his fourth birthday.
The billionaire Tesla CEO posted the photo of the boy, nicknamed X, on the...
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