The dynamic duo brought the house down while performing their retro-flavored remixed version of "Finesse" at the 60th Annual GRAMMY Awards at Madison Square Garden in New York City on Sunday.
Dripping in finesse and showing how it's done, Mars, 32, stepped out looking fresh in his usual striped sport-pullover garb.
Cardi B turned heads in a very racy multi-colored custon Moschino outfit that screamed '80s, before coming out to deliver a second verse (that really needs to be released as an update to the song!).
Cardi B was nominated for two GRAMMYs and Mars was already cleaning up before the show, winning for both R&B Performance and Song.
Ahead of the GRAMMYs, the "Bartier Cardi" singer told ET that she was "confident but nervous" about taking the stage.
“I am pretty nervous. I'm confident that I'm pretty nervous,” she said, adding that Mars is “a very strict” performer. “We rehearse, rehearse, rehearse [and] practice, practice, practice. But I’m confident but I’m still nervous.”
Earlier in the week, Cardi was asked what she was looking most forward to during the ceremony.
"What I am most excited to see on the GRAMMYs Sunday is just, like, me hopefully winning an award," the 25-year-old rapper epically responded. "Like, what else?"
The Bronx native was nominated in two categories: Best Rap Performance and Best Rap Song for "Bodak Yellow." Meanwhile, Mars was nominated in six categories, including Album of the Year for "24K Magic," Song of the Year for "That's What I Like" and Record of the Year.