TV host Nick Cannon, rapper Future and Elon Musk have a lot in common these days — and it has nothing to do with music. According to a recent report, the tech tycoon is now the father of 10 children.

The SpaceX founder welcomed twins with Shivon Zilis, a top executive at Musk-owned Neuralink. In court documents obtained by Insider, the two were recently in court to change their childrens’ last name to include Musk.

Zillis, 36, and Musk, 51, had their twins just a few months before Musk had his second child with musician Grimes via surrogate. The father of ten has been vocal on Twitter about raising the birth rate.

While Musk may consider it his civic duty to help populate the planet, it’s certainly easier to support children when you have a $200 billion nest egg.

Musk had six children with his first wife, Canadian author Justine Wilson, during their marriage from 2000 to 2008.