While Cardi B and Megan Thee Stallion's "WAP" performance at the 2021 Grammys left everyone speechless, viewers seemed just as entertained by Post Malone's reaction to the duo's raunchy dance moves on Sunday, March 14.
The "Savage" rapper and "I Like It" singer certainly left very little up to the imagination as they twerked on stage in minimal attire. Accompanied by multiple background dancers who strutted their stuff (in masks, to stay safe of course!), the power duo danced around an oversized stiletto heal and rolled around on a massive stage that was shaped like a bed while performing "WAP" — which was No. 1 on the Billboard Hot 100.
The song also broke the U.S. record for most first-week streams in a week (93 million).
Despite the sexy performance being pretty NSFW, Post Malone didn't seem to mind. The "Circles" crooner was smiling ear to ear as he watched Cardi and Megan — who created the first collaboration by female rappers to debut in the Billboard spot following the release of "WAP" on August 7 — perform their salacious song together for the first time.
As the duo twerked on stage, the camera cut to Post cheering them on multiple times on the sidelines with a drink in his hand. Viewers were quick to catch Post's jaw drop as he watched on.
Overall, it's been a great night for Post and Megan. The "Body" singer was up for a total of four Grammys this year; she won the award for Best New Artist and Best Rap Performance for Savage" ft. Beyoncé. She was also nominated for Record of the Year.
Post performed shortly after Cardi and Megan took the stage. He was nominated for Album of the Year for Hollywood's Bleeding, Record of the Year and Song of the Year for "Circles."
Scroll through to see the best reactions to the artists' performance.