"I gained weight get over it," the "Say My Name" singer wrote Monday.
But it's not what she said, but the reactions she got and how she inspired others that's really noteworthy.
In the comments of the tweet, female fans not only supported the singer, but shared their own battles with body image.
"Your body is beautiful but what's even more beautiful is your confidence, please don't let anyone take that away from you!" one fan wrote. "The most important thing is that you're happy and you feel good in your body, other people's opinions are SO irrelevant when it comes to that topic."
Another added, "YES QUEEEEEEN!!!! its totally normal that people lose or gain weight no matter what they do because this is life. we all are growing all the time and our body changes. people should respect it and stop trying to put others down for like what?? we all are the same humans."
Many of her fans also just simply called the singer "gorgeous."
Rexha is no stranger to being candid and real about her body. In January, she revealed designers were telling her she's too "big" and that they wouldn't dress her for the Grammy Awards.
"So I finally get nominated at the Grammys and it's, like, the coolest thing ever," she said on Instagram. "I had my team hit [up] a lot of designers and a lot of them do not want to dress me because I'm too big. Literally, like, I'm too big ... If a size 6/8 is too big then... I dunno what to tell you. Then I don't wanna wear your f---ing dresses! 'Cause that's crazy!"
In the end, Rexha wore a red, layered tulle gown after several designers, including August Getty Atelier and Christian Siriano, reached out to offer to dress her. In fact, she wore two dresses that night and slayed.
"They said I was too big or fat -- and I love my body. I just want other girls to love their bodies," she said that night on the carpet.