Elon Musk jokes he named his son X Æ A-12 after a cat running across keyboard on 'SNL'

• Elon Musk, CEO of Tesla and SpaceX, made his hosting debut on NBC's "Saturday Night Live" this week.
• He joked about his name choice for X AE A-XII, his and Grimes' 1-year-old son, during his monologue.
• "It's pronounced: Cat running across the keyboard," he said.

Elon Musk poked fun at the pronunciation of X AE A-XII, his and Grimes' 1-year-old son, during his monologue on this week's episode of NBC's "Saturday Night Live."

"'SNL' is also a great way to learn something new about the host. For example, this is my son's name," he said, gesturing to on-screen text of his son's name.

"It's pronounced: Cat running across the keyboard," he quipped.

Musk and Grimes welcomed X AE A-XII (nicknamed "Little X"), their first child together, in May 2020. The baby's first name is X, middle name is AE A-XII, and surname is Musk, according to the birth certificate obtained by TMZ.

The unique moniker led to a flurry of memes and jokes online.

Saturday marked the Tesla and SpaceX CEO's first time hosting the popular comedy sketch series. Lorne Michaels, the creator and executive producer of "SNL," sparked a wide range of reactions after tapping on Musk to host the show.

Many fans pointed to the polarizing tech billionaire's past controversies, which include spreading misinformation about the coronavirus pandemic, sharing anti-union messaging on social media, and making controversial comments about gender pronouns.

"SNL" cast members Aidy Bryant, Bowen Yang, and Andrew Dismukes seemed to react negatively to news that Musk would be on the show, sharing veiled messages on their social media pages. Their posts have since been deleted.

A source told Page Six that Michaels would not force any cast members to appear alongside Musk, or any host, if they feel uncomfortable. No one pulled out of the show at the time the report was published, per the source.

Numerous season 46 cast members expressed their excitement for Musk, the most divisive host since Donald Trump in 2015, to make his debut at Studio 8H.

Michael Che, the "Weekend Updates" host, called the lineup "exciting" on "The Wendy Williams Show," and Pete Davidson, the star of "The King of Staten Island," defended Musk as an individual that "makes the Earth better and makes cool things and sends people to Mars" on a recent episode of "Late Night."

Musk's episode of "SNL" marked the first time the comedy series livestreamed internationally.