Jatavia Shakara Johnson is an American rapper best known as one half of the hip-hop duo City Girls. The pair signed to Quality Control Music and have won fans with their provocative lyrics, as heard on such tracks as "I'll Take Your Man" and "Where the Bag At.

After signing to Quality Control Music, JT and Yung Miami were ranked as the most popular developing artists of the week, according to the measuring activity across Billboard charts Hot 100, the Social 50, and Billboard 200. The group's name derives from the pair being from Opa-locka and Liberty City, described by Complex as "two of the roughest neighborhoods in Miami, Florida."

The duo recorded their debut studio track, "Fuck Dat Nigga", which was a diss track towards their ex-boyfriends for not giving them money when they asked. Yung Miami promoted it through social media and by paying DJs to play it in clubs. 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. 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. The judge did eventually agree to push back her surrender date. JT began her prison term in July 2018 for credit card fraud charges and was released on October 8, 2019, 5 months before her original release date of March 1, 2020. While JT was incarcerated, Yung Miami continued promote the group's music, saying: "When she was in jail, I was going to strip clubs and I would pay a DJ $20 to play the song. It started taking off." Later that year, the track was included in Quality Control's compilation album, Control the Streets Volume 1, and it went to number five on the Billboard 200. It also topped Billboard's R&B/Hip-hop chart. The official music video for "Fuck Dat Nigga" came out in January 2018 and featured an appearance from rapper Trina.

In May 2018, the City Girls released their debut mixtape, Period, which reached No. 16 on Heatseekers Albums the same month. Period also went on to be ranked the 26th best Hip Hop Album in 2018 by Rolling Stone.

In November 2018, the City Girls released their debut studio album, Girl Code, which features Cardi B, Lil Baby and Jacquees. City Girls contributed guest vocals to Drake's song, "In My Feelings", with Yung Miami appearing in the music video. In August 2018, they released the documentary, Point Blank Period. In November 2018, their album Girl Code entered the Billboard 200 at number 63. Their single, "Twerk", featuring Cardi B, reached number 29 on the Billboard Hot 100. Their follow-up single, "Act Up", hit number 26 on the Billboard Hot 100 chart in June 2019. In September 2019, Yung Miami confirmed to Ebro Darden on Apple Music's Beats 1 that the duo plan on recording a new album, which is expected to be released in the spring of 2020.

On June 19, 2020, City Girls’ second studio album titled, City on Lock, leaked in its entirety online. JT announced hours later that the album would be released at midnight of the same day. The album's first single, "Jobs", was released hours before the album release alongside a music video. The album includes guest appearances from Yo Gotti, Doja Cat, Lil Durk and Lil Baby.

JT is the eldest of her mother's three children. .

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