[4] The duo signed with Quality Control Music, an imprint of Motown and Capitol Records to release their debut mixtape, Period (2018).

Two months later, they garnered mainstream attention following their guest performances on Drake's 2018 single, "In My Feelings", which peaked atop the Billboard Hot 100.

[3] Their debut studio album, Girl Code (2018) saw positive critical reception and was supported by the singles "Twerk" (featuring Cardi B) and "Act Up"—both peaked within the top 40 of the Billboard Hot 100 and received platinum certifications by the Recording Industry Association of America (RIAA).

The group's name derives from the pair being from Opa-locka and Liberty City, described by Complex magazine as "two of the roughest neighborhoods in Miami, Florida".

Soon the track, which features a prominent sample of fellow Florida rapper Khia's "My Neck, My Back (Lick It)", racked up hundreds of thousands of plays.

[2] Shortly after the release of "Fuck Dat Nigga", JT was arrested and charged with aggravated identity theft, and was sentenced to 24 months in federal prison.

[8] While JT was incarcerated, Yung Miami continued to promote the group's music, by saying: "When she was in jail, I was going to strip clubs and I would pay a DJ 20 dollars to play the song.

[11] In July 2018, the duo were launched into mainstream recognition after an uncredited feature on Drake's "In My Feelings", with Yung Miami appearing in the music video.

In September 2019, Yung Miami confirmed to Ebro Darden on Apple Music's Beats 1 that the duo planned on recording a new album, expecting to release it early in 2020.

[26] On October 29, 2021, Yung Miami released her debut solo single, "Rap Freaks", alongside its music video.

As a sex-positive track, it sees her reference various rappers, including Megan Thee Stallion, Diddy, and Meek Mill.

"[3] Before rapping, Yung Miami was an Instagram influencer who promoted her own fashion line selling clothes and other items.

An unknown assailant inside a car with no lights on attempted to fire shots into her vehicle, striking her red Mercedes-Benz G-Class in the spare tire.

Shortly after the release of their 2017 debut single, "Fuck Dat Nigga", JT was arrested and convicted of aggravated identity theft on fraudulent credit card charges, and was sentenced to 24 months in federal prison.

Following a pushback of her surrender date, JT turned herself in to the authorities on June 29, 2018, and began serving her sentence while being held at FCI Tallahassee in July 2018.

[48] In August 2018, Yung Miami was among several rappers who faced criticism after the circulation of tweets she had written in the past that contained homophobic remarks.

[48] Though she apologized, Yung Miami found herself embroiled in controversy once more on November 13 when she doubled down on her homophobic statements in an appearance on Power 105.1's radio show The Breakfast Club.

[48] During the interview, she was questioned by radio host Charlamagne tha God in regard to her controversial tweet that claimed what she would do if she found out that her son was gay.