Elon Musk Had Twins With One Of His Top Executives

Musk and Zilis filed a petition in April to change the twins' names in order to 'have their father's last name and contain their mother's last name as part of their middle name,' according to the court documents. 

The twins were born in November, just weeks before Musk and Claire Boucher, the musician who performs as Grimes, had their second child via surrogate in December.