Teigen has never even seen "Selma" -- a movie that won her husband an Oscar.
While making an appearance on "The Ellen Show" Monday, the momma-to-be played a new game called "You Don't Know Jack About John" to see what she actually knew about her husband's most successful projects.
"What was the name of the band that John was a part of in the movie 'La La Land,'" DeGeneres said.
"There's no choices?" Teigen asked.
The 32-year-old model and TV personality didn't know Legend's movie band was called The Messengers nor did she know when he won his first Grammy, anything that occurred in his carpool karaoke with Alicia Keys, his cell phone number or that he wrote a song for the "Fifty Shades" franchise.
"This is a big fight that we always have though," Teigen said. "He doesn't tell me about things he's producing or, like, we went to Sundance and he's like, 'Oh we're showing my movie.' And I was like, 'Your movie? What are you talking about?' Because these celebrities, they just put their names on things. You don't know what they're really involved in."
"These celebrities? He's your husband," DeGeneres said.
Teigen admitted she didn't even see the movie "Selma," which won Legend an Oscar in 2015 for writing and performing Best Original Song "Glory" with Common.
Thankfully, Teigen was able to redeem herself toward the end of the game, correctly guessing Roger for his middle name and "Beauty and the Beast" for the song that he sang a duet with Ariana Grande.