Considering she named her baby X Æ A-XII, Grimes was never going to do things by the book in terms of raising the child.

It's safe to say that the sprog, who is now 5 months old, is in for an unconventional kind of upbringing - not least because his father is Elon Musk.

That even stretches to the kind of lullaby music that he's being exposed to. There'll be no 'Rock a Bye Baby' or 'Twinkle Twinkle Little Star' played in the Boucher-Musk household. Oh no: in fact, the Canadian musician has released a collection of new lullaby music made with artificial intelligence. Or more accurately, a "limited edition adaptive sleep soundscape".

'AI Lullaby' is a collaboration with Endel, an app that uses AI to make music that is "scientifically engineered to improve both sleep and wellness in children and adults."

Grimes told the New York Times: "When you have a baby, you’re always using white noise machines. It’s much easier to get them to sleep if you train them on some kind of audio situation. And so I was just like, could this be more artistic?"

She added: "In general, stuff for babies is really just creatively bad. I don’t want your first introduction to the world to just be all this aimless crap.”

Hear a portion of 'AI Lullaby' below: