In June this year, Elon Musk commented on the declining population in the US on Twitter, saying that he was “doing [his] part” to fix what he thought was a “demographic disaster”. Musk’s comments re-emerged after it was revealed this week that he had secretly fathered a set of twins in November last year, bringing the total number of children he has fathered to nine. Commenting on his situation, Musk said the amount of children he had was “unusual” because “statistically, the richer someone is, the fewer kids they have”. This is highly unusual btw. Statistically, the richer someone is, the fewer kids they have. — Elon Musk (@elonmusk) June 14, 2022 So who are Musk’s kids and what do we know about them? Here’s a snapshot of his growing brood. The mystery twins The SpaceX CEO welcomed twins with an executive at his artificial intelligence company Neuralink, according to Newsweek . Shivon Zilis is an AI expert and has reportedly worked for the company for five years. Business Insider stated that the couple welcomed twins in November 2021. Zilis and Musk reportedly filed legal documents to have the twins’ names changed to reflect that of their father. The revelation has shocked many as Musk and his on-off partner, musician Grimes, welcomed a baby via surrogate in December of the same year. Who is the richest woman in the world right now? (No, it’s not Kim K) Nevada Musk In a 2010 interview with Marie Claire , Justine Wilson , Musk’s first wife, wrote that their first child together, Nevada, died at 10 weeks old. In her essay, she said she went to put her son to bed in his cot “as always” and he just stopped breathing. She said by the time paramedics were able to revive him, the baby was already brain-dead and he was put on life support. Wilson described how, three days later, they decided to take Nevada off life support and he passed away. She attributed the death to SIDS (Sudden Infant Death Syndrome) and said her baby’s death sent her into a spiral of depression. Griffin Musk and Vivian Jenna Wilson In the same essay, Wilson said she and Musk tried to get pregnant as quickly as possible after the death of their first born. The couple turned to IVF and Wilson gave birth to twins Griffin and Xavier Musk in April 2004. In June this year, the latter twin filed a legal request to change her name to Vivian Jenna Wilson . The request has since been granted. Vivian said the name change was to reflect her gender and because she did not want to “be related to my biological father in any way, shape or form”. Inside Dream Kardashian’s fabulous life, from baby Bentleys to Amazon ads Kai, Saxon and Damian Musk Just two years after giving birth to twins, Wilson and Musk welcomed triplets into the world. Kai, Saxon and Damian Musk were born in January 2006. In a Ted Talk, Wilson revealed the couple had again turned to IVF to help expand their family. The couple were married in 2000 and divorced in 2008. In her Marie Claire essay, Wilson said she and Musk shared custody of the children. X Æ A- Xii Musk In May 2018, following a tumultuous few years of broken marriages and relationships with the likes of Talulah Riley and even Johnny Depp’s ex Amber Heard, Musk began dating singer Grimes. Two years later she gave birth to their son, X Æ A-Xii. In an interview with Rolling Stone , Grimes said pregnancy was a “pretty crazy sacrifice” and that carrying a baby to term required you to “sacrifice your body and your freedom”. She said it was a “profound commitment” on her part as she had spent most of her life avoiding being pregnant. The baby is now referred to as X. Grimes told Vanity Fair she believed Musk considered X to be his protégé, explaining why the child is regularly spotted with the Tesla boss. The singer also spoke about how she’d found the last month of pregnancy debilitating because X was pushing on her nerves, causing her to collapse frequently. Who is the father of Amber Heard’s baby? Meet daughter Oonagh Paige The newest addition: Exa Dark Sideræl Musk Although Musk and Grimes have been on-again off-again for years, the pair appeared to have already broken up in December 2021 when they welcomed a baby girl via surrogate. Exa Dark Sideræl is the first daughter the SpaceX founder has fathered. Her nickname is Y. In an interview with Vanity Fair , Grimes later referred to her relationship with Musk as “fluid”. She said they lived in separate houses but were best friends and see each other all the time. She said that their arrangement worked for them and they planned to have more children. Want more stories like this? Follow STYLE on Facebook , Instagram , YouTube and Twitter .