Bruno Mars and Cardi B were on another level when they sang their hit song "Finesse" together at the Grammys on Sunday night. Just like their colourful music video, the duo went old school with a fun-filled '90s theme. Seriously, it was like the party we all wished we could have attended when we were kids. As if Cardi's rap wasn't enough to get you pumped, Bruno, who is nominated for six awards including album of the year, sent fans into a frenzy when he flawlessly moonwalked down the stage. Needless to say, it didn't take long for celebs like Chrissy Teigen to jump to their feet and start dancing in the audience.