Mars and Cardi B posed backstage together ahead of their hotly-anticipated performance.

This image appears in the gallery:
23 Moments You Shouldn’t Have Missed From The Grammy Awards 2018

1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 

10. 23 images

See the full gallery: 23 Moments You Shouldn’t Have Missed From The Grammy Awards 2018