Doechii is checking every box on the ... In November, all eyes were on her when she delivered a high-energy set during Tyler ...

The collaboration between Jennie and Doechii had been anticipated since they were pictured together backstage at the Camp Flog Gnaw Carnival ... which had been set to kick off Wednesday in Chicago.

Doechii isn't just a rapper or a singer ... tour and gave a showstopping performance at Tyler, the Creator's Camp Flog Gnaw. "It just shows how conceptual the music really was," she says.