The 25-year-old hip-hop stunner (born Belcalis Almanzar) twerked up a storm while flanked by two female dancers onstage Louisiana's Joy Theater.
Cardi flaunted the large peacock tattoo on her thigh in a nude embellished onesie featuring an ornate choker selected by stylist Kollin Carter.
The ex-stripper opted to not wear the 8-carat, pear-shaped diamond engagement ring she received from her fiancé of two months, Offset of the Atlanta rap trio Migos.
This month, Cardi B broke records as the first female rapper to have three songs consecutively charting on Billboard's top 10 singles.
Backstage she was captured while warming up.