This comes after trolls forced the 'Bodak Yellow' hitmaker to delete her Instagram.
In a Tweet, Lady Gaga wrote, "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. I love you Cardi. You deserve your awards. Let's celebrate her fight. Lift her up & honour her. She is brave. (sic)"
Cardi B took home the Best Rap Album prize at Sunday's ceremony for her debut LP 'Invasion of Privacy'.
The singer, however, had to defend her win on social media when some people claimed other nominees were more deserving of the gong.

Colombian singer Shakira acquitted of tax fraud in Spain
Julianne Moore warns gender equality still distant at Cannes event
Bulgaria wins Eurovision Song Contest, Israel comes second again
Eurovision Song Contest final takes the stage, stung by Gaza boycott
Dubai unveils region's first museum dedicated to digital art
