Musk's first wife, Justine Wilson, is a fantasy and sci-fi author with whom he had six children. Their first child, Nevada Alexander Musk, was born in 2002 but tragically died due to Sudden Infant Death Syndrome. The couple later had twins, Griffin and Vivian, in 2004, followed by triplets, Kai, Saxon and Damian, in 2006.

The “Genesis” singer and the billionaire are parents to three children: X Æ A-Xii, Techno Mechanicus and Exa Dark Sideræl.