The track features a guest verse by Afro-fusion singer Burna Boy. Mahalia recalled to Billboard
that the collaboration came about when she and her producer were listening to "Simmer," and they both "came to the realization that someone else would sound great on the track."
The producer suggested hitting up Burna Boy, but Mahalia found contacting the Nigerian artist wasn't easy, so she eventually turned to her manager. He pulled some strings and managed to get Burna Boy on board. "I was so amazed by his talent and his melodies, and I just thought that taking that step to experiment - especially with an artist like Burna Boy - was so worth it," she said.