GRIMES and Elon Musk left fans perplexed earlier this month when they revealed they named their newborn son X Æ A-12.

The pair was inundated with questions regarding the pronunciation and meaning behind the unconventional moniker, which ended up being slightly changed after his birth.

In an interview with Bloomberg about her upcoming online art exhibition, the singer revealed she calls her newborn “Little X.”

Recently, Grimes opened up on Instagram about the change the couple made to their child’s name, given that it reportedly wouldn’t be accepted legally in the state of California.

She told a fan the couple replaced the number 12 from his name with roman numerals instead.

Grimes, 32, also shared the name is pronounced “Ex-Eye.”

Grimes, whose birth name is Claire Boucher, and the tech entrepreneur welcomed their son May 4.

The new mom previously took to Twitter and explained the X represents “the unknown variable” and “Æ, my elven spelling of Ai (love &/or Artificial intelligence).”

She also shared that part of the name is a tribute to the CIA’s Lockheed A-12 reconnaissance plane, which has “no weapons, no defenses, just speed. Great in battle, but non-violent.” As for the “A,” it represents “Archangel,” which is her “favorite song” and the number “12” represented the Chinese zodiac sign of the rat.

But when Musk, 48, participated in a recent episode of “The Joe Rogan Experience” podcast, he said X is spoken “like the letter” while “the ‘Æ’ is pronounced like ‘ash.’”

Musk reportedly has five sons from a previous marriage. His first son Nevada passed away at 10 weeks old in 2002 from SIDS.

(SD-Agencies)