Gaga and Cardi B proved to be the friendship goals we never knew we needed as they shared a joke at the star-studded bash.
The pair posed for pictures together before Gaga later posted her reaction on Instagram.
Alongside a video of her dancing, Gaga wrote: “Mood after winning 3 GRAMMYs, a BAFTA and finally meeting @iamcardib all on a Sunday evening.”
Gaga had a successful night at the Staples Centre, picking up two awards for the A Star Is Born soundtrack, for hit song Shallow, and one for Best Vocal Performance for Joanne.
The Invasion Of Privacy artist, who stole the show with her ostentatious gown, thanked her daughter Kulture in her emotional acceptance speech before paying tribute to her husband Offset.
She said: “When I found out [about the pregnancy], my album was not complete… we [had] to get this album done so I could shoot these videos while I’m still not showing. It was very long nights.
"You, husband, thank you. Nah, seriously, 'cause he was like, ‘you're going to do this album, girl. We're gonna have this baby, and we're gonna make this album’. And thank you so much, everybody.”
The pair had announced their split last year but appear to have reconciled, putting on a united front at the award ceremony.
Meanwhile, Gaga also celebrated success at the biggest night in British film as she picked up Best Original Music for A Star Is Born with co-star Bradley Cooper , who missed out on Best Actor and Best Director for the romantic remake.