She says she'll likely hyphenate, and admits she doesn't want to give up Grande, for her grandfather - except she pronounces it not like the Spanish word, but "grann-dee".
It turns out that not only has the public been mispronouncing her last name for well over a decade, but Teigen herself is guilty of doing the same, all in an effort to avoid a potentially uncomfortable confrontation. Imperfect advise? I'll eat it. Taxi going to the contaminated airport?
In another post she wrote, "I don't correct people, ever". "They can name me Janet and I won't".
The camera then cut to her mother, who confirmed her daughter's bombshell announcement.
"Just call her Teigen; it's fine", Legend said. "She is one of my favorite singers". She tweeted on Sunday night that the correct pronunciation is with a long "i" sound and not a long "e" sound - so it sounds like "Tie-gen" instead of "Tee-gen".
Although the "Lip Sync Battle" host is clearly not pregnant right now, she had Us Weekly that she is looking forward to expanding her family further.
Lest you think she's lying about her last name, she brought in backup.
The 32-year-old star shocked many of her 10.7 million Twitter followers this week when she tweeted that almost everyone mispronounces her name.
Well, at least there are others out ther who feel her pain.
We're actually not sure why we've been pronouncing Martin Scorsese's last name as "Scor-say-zee" all along.