Cardi B became the first solo woman to win best rap album at the 2019 Grammy Awards, but not everyone embraced her victory.

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The 26-year-old rapper faced criticism from some who suggested she didn't deserve the highly-coveted award for her album "Invasion of Privacy" and that it should have gone to another nominee.

Travis Scott, Pusha T, Nipsey Hussle and the late Mac Miller were also nominated in the category.

One celebrity who has spoken out to offer support to Cardi B? Fellow Grammy winner Lady Gaga.

Gaga shared a photo of the pair on Twitter and added commentary reflecting on the struggle of female entertainers in their profession.

"It is so hard to be a woman in this industry. What it takes, how hard we work through the disrespectful challenges, just to make art," she captioned the tweet.

"I love you Cardi. You deserve your awards. Let’s celebrate her fight. Lift her up & honor her. She is brave," she added.

Cardi B originally addressed the criticism she faced from the Grammy win in a since-deleted Instagram video on Monday.

"I’m seeing a lot of bulls---- today and I saw a lot of s--- last night. And I’m sick of this," she said in the video. "I worked hard for my motherf------ album.”

"I remember last year when I didn’t win for 'Bodak Yellow,' everybody was like, 'Cardi got snubbed, Cardi got snubbed.' Now this year’s a f------ problem?" she said. "My album went two-time platinum ... And every chart that there was, my album was always top 10. Number one album as well."

She also spoke about the time and effort she put into creating the album while she was pregnant.

"I f------ worked my a-- off, locked myself in the studio for three months ... then went to sleep in my own bed, sometimes for four days straight, pregnant. Some songs couldn't even get on the f------ album because my nose was so f------ stuffy from my pregnancy ... While everybody was harassing me, 'You not gonna do it -- we know you’re pregnant, your career is over!'"

The "Invasion Of Privacy" singer later deleted her account.