Swae teased the collab on Instagram.
"Me and [Jhene] have a special surprise for y’all," he wrote alongside photos of the pair at the Shang-Chi and the Legend of the Ten Rings premiere in Los Angeles.
The song premiered on Marvel Entertainment's Youtube channel and sees Swae and Jhene singing to each other as exes asking each other not to leave them in the dark.
Shang-Chi and the Legend of the Ten Rings is the latest addition to the Marvel Cinematic Universe and will introduce fans to a brand new hero, "Martial-arts master Shang-Chi as he confronts the past he thought he left behind the Ten Rings organization."
Shang-Chi and the Legend of the Ten Rings premieres in theaters on September 3, 2021.