SpaceX and Tesla founder Elon Musk and singer Grimes named their son X Æ A-12.
Grimes took to her Twitter to explain the name.
"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)," Grimes tweeted.
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As reported earlier, Canadian singer Grimes (Claire Elise Boucher), 32, became a mother for the first time on Monday, whereas her loved one, technology entrepreneur Elon Musk, 48, has become a father for the sixth time.
Musk announced the birth of the child on his Twitter page, noting that both the baby and the mother were “all good.”