The Girl on Fire singer will be hosting the awards for the first time in her career.
Monae's groundbreaking album, "Dirty Computer", is one of five albums by women nominated for the top prize at Sunday's show, airing live at 8 p.m.
Carlile is the most nominated woman with six nominations, including bids for song and record of the year with "The Joke". Because yes, the red carpet is just as big of a deal as the show itself.
In the Best New Artist category, six of the eight nominees are women.
Taylor Swift, who has just one nod for her best-selling 2017 album "Reputation", is filming in London. "Know that I support you - win or lose", Monae said.
When asked about the lack of women in the top categories at the 2018 Grammys, Recording Academy CEO Neil Portnow said women need to "step up". The event also highlighted her organization Fem the Future, which empowers women in music to take on roles as engineers, producers, music video directors and more.
The lead up to this year's Grammys hasn't been completely smooth though. He later acknowledged that it was a "poor choice of words", and it forced the academy to launch a new task force focused on inclusion and diversity.
Ehrlich told the AP that Grande "felt it was too late for her to pull something together".
"It was when my creativity & self expression was stifled by you, that i decided not to attend. i hope the show is exactly what you want it to be and more", she continued.
Grande added that she had offered to perform three different songs, but that the process, which she wrote should be "about art and honesty", wound up feeling like a game: "that's not what music is to me", she concluded.
Grande is nominated for two awards and could miss the chance of giving a speech onstage if she wins.
The ceremony starts at 5 p.m. PT/8 p.m. ET and will air on CBS. Additionally, Jennifer Lopez will take the stage for a Motown tribute, although some have criticized the decision to pick a non-black singer for the performance - especially during Black History Month - when artists like Ross, Stevie Wonder or Gladys Knight could have been chosen. A representative for the Grammys didn't return an email seeking clarification about the tribute.
The main performers for this year includes Lady Gaga, Mark Ronson, Dua Lipa, St. Vincent, Chloe x Halle and Travis Scott. Yolanda Adams, Fantasia and Andra Day will honor the late Aretha Franklin with a performance. Alessia Cara is set to appear as a presenter, while Shawn Mendes is going to perform and also up for a nomination.