Irreverent rap duo City Girls had no ambition beyond recording a diss track and instead landed a deal with Quality Control, one of the most commercially successful rap labels of the late 2010s, and in 2018 made their full-length debut with Period. Friends since their early teens, the Miami, Florida-based Yung Miami (originally from Opa-locka) and JT (via Carol City and Liberty City) were motivated to record following an altercation with some individuals. The two got in touch with friend and producer MajorNine, from whom they purchased a beat -- one that utilized "My Neck, My Back," the raunchy 2002 hit by stylistic inspiration Khia -- and in August 2017 recorded "Fu*k Dat Ni**a." The track, which targeted jealous onlookers and broke suitors, was promoted by Yung Miami on Instagram and in clubs.
By the end of the year, "Fu*k Dat Ni**a" appeared on Quality Control: Control the Streets, Vol. 1, a compilation that debuted at the top of Billboard's R&B/hip-hop chart and went to number five on the Billboard 200. The track's official video, featuring an appearance from Trina, Yung Miami's godmother, appeared the following January. Within four months, Yung Miami and JT released their first album, Period, led by the single "Where the Bag At," a collaboration with producers Bigg D and Cainon Lamb.