Lil Baby recruits Gunna for “Heatin Up,” a cutthroat and frenetic addition to their collaborative history. They flex materialistic things such as expensive cars, clothing and drugs while also showing how they squash their competition on the streets and in the rap game.

The track, produced by Quay Global, is centered around a simple string instrumental featuring three notes played on a violin, with a relatively-stripped back bass and drum line in the background.