Elon Musk cuddles up to his and Grimes’ new baby boy X AE A-XII

He welcomed his seventh child, and first with girlfriend Grimes, in early May. 

And Elon Musk cuddled up to his baby boy – who he controversially named X AE A-XII – in a video posted to Instagram by his model mom Maye Musk. 

In the photos, posted Monday, the 48-year-old held his newborn son close as they gave each other loving looks. 

Sweet; Elon Musk cuddled up to his baby boy X AE A-XII in a video posted to Instagram by his model mom Maye Musk 

The baby, known simply as X, was wrapped up in a blue blanket and long sleeve white tee as his dad played with his hand. 

In the video the billionaire speaks to X asking ‘Does my voice sound familiar? Who am I?’ 

X seems to listen as Elon speaks, looking up at him in awe. 

‘This is your dad speaking,’ he continues as X grips his finger. ‘Hello, hello baby. Hello baby X.’ 

Sounds familiar: In the video the billionaire speaks to X asking 'Does my voice sound familiar? Who am I?'

Sounds familiar: In the video the billionaire speaks to X asking ‘Does my voice sound familiar? Who am I?’

That's dad: X seems to listen as Elon speaks, looking up at him in awe. 'This is your dad speaking,' he continues as X grips his finger. 'Hello, hello baby. Hello baby X'

That’s dad: X seems to listen as Elon speaks, looking up at him in awe. ‘This is your dad speaking,’ he continues as X grips his finger. ‘Hello, hello baby. Hello baby X’ 

Maye simply captioned the video ‘Elon and X.’ 

Grimes and Elon had to officially change the baby’s name from X Æ A-12 to X AE A-XII to comply with California law.  

But birth names in California must only contain letters from the English alphabet, with no numbers or special characters, TMZ have reported.

The parents have therefore had to change the character Æ, which is used in Norwegian and Danish and is often pronounced ‘Ash’, to ‘AE’ in their son’s name.

Bonding: Maye simply captioned the video 'Elon and X'

Bonding: Maye simply captioned the video ‘Elon and X’

Parents: Grimes and Elon, who welcomed their first child together in May, had to officially change the baby's name from X Æ A-12 to X AE A-XII to comply with California law

Parents: Grimes and Elon, who welcomed their first child together in May, had to officially change the baby’s name from X Æ A-12 to X AE A-XII to comply with California law 

The final part of his unusual name, A-12, named after a 1960s spy plane, has been changed to Roman numerals to comply with state law. 

It comes after Grimes told Bloomberg her nickname for baby X Æ A-12 is ‘Little X’. 

She explained the name on Twitter after his birth: ‘X, the unknown variable. Æ, my elven spelling of Ai (love &/or Artificial intelligence). A-12 = precursor to SR-17 (our favorite aircraft). No weapons, no defenses, just speed. Great in battle, but non-violent + (A=Archangel, my favorite song) (metal rat).’

The Canadian singer, 32,  (born Claire Elise Boucher) clarified that the bizarre moniker is pronounced: ‘Ex Ash A Twelve.’ 

How she says it: The Canadian singer, 32, (born Claire Elise Boucher) clarified that the bizarre moniker is pronounced: 'Ex Ash A Twelve'

How she says it: The Canadian singer, 32, (born Claire Elise Boucher) clarified that the bizarre moniker is pronounced: ‘Ex Ash A Twelve’  

But Musk disagreed, as he said it was ‘Ex Ash Archangel Twelve’ on the Joe Rogan Experience podcast.

In a two hour long chat, the billionaire broke down the name of his newborn before doubling down on his pledge to sell his possessions, telling Rogan he will rent a home. He said: ‘What’s the worst that can happen?’ 

Musk told Rogan: ‘First of all, my partner is the one that, actually, mostly, came up with the name. Yeah, she’s great at names.

When asked to explain the choice Musk replied: ‘I mean it’s just X, the letter X. And then, the Æ is, like, pronounced ‘Ash’. 

How he says it: But Musk disagreed, as he said it was 'Ex Ash Archangel Twelve' on the Joe Rogan Experience podcast

How he says it: But Musk disagreed, as he said it was ‘Ex Ash Archangel Twelve’ on the Joe Rogan Experience podcast  

‘And then, A-12, A-12 is my contribution. Archangel 12, the precursor to the SR-71, is the coolest plane ever’, he added.

He also admitted the name was mostly Grimes’ idea, adding: ‘A-12 was my contribution. The Archangel-12, the precursor to the SR-71, the coolest plane ever.’

Elon also shares six sons with ex-wife Justine Wilson, one of whom died at 10 weeks of SIDS.

Father of 7: Elon also shares six sons with ex-wife Justine Wilson, one of whom died at 10 weeks of SIDS

Father of 7: Elon also shares six sons with ex-wife Justine Wilson, one of whom died at 10 weeks of SIDS  

Their first child, Nevada Alexander Musk, died of sudden infant death syndrome (SIDS) when he was just 10 weeks old. 

The couple later had five sons through IVF – twins Griffin and Xavier, who were born in 2004, followed by triplets Kai, Saxon and Damian in 2006.  

Musk, who has a reported net worth of $37 billion, began dating Grimes in 2018 after they met at that year’s Met Gala.