Ed Sheeran was one of the opening performers for the 2017 VMAs, where he did a stripped down rendition of “Shape of You.”

But what was surprising to fans is when Sheeran brought out Lil Uzi Vert to perform what appeared to be an unofficial remix to the English singer’s Hot 100 hit. And if that wasn’t a crazy enough sight to see, Sheeran returned the favor by covering parts of Uzi’s “XO TOUR Llif3.”

It sparked a mixed reaction from the crowd. Ludacris looked like he was into it. So was Pink. However, Cardi B takes the cake with her facial reaction alone.

Others watching from home loved it, though.

Well, maybe not everyone.

You can catch up on all the performances here. Others expected to hit the stage include the Weeknd, Miley Cyrus, Lorde, Fifth Harmony, Logic, Demi Lovato, Alessia Cara, Kyle, and more.