On “Flex,” Polo G links up with fellow Chicago rapper Juice WRLD to deliver some braggadocios bars about their lifestyles and success in the music industry.

The track marks the first released collaboration between the two artists. However, Polo G later featured on Juice WRLD’s song “Hate the Other Side", which officially released in July 2020.

Polo G stated in an interview with Complex News that this song with Juice WRLD was the feature he was most excited for on his sophomore album, THE GOAT.

This track also serves as Juice WRLD’s sixth posthumous release, following Juice’s April 2020 singles “No Me Ame” with Rvssian and Anuel AA and “Righteous.”