[5][6] Before Verbal Jint's official debut in 2001, Korean hip hop lacked a fundamental component of rap, the rhyming.

Verbal Jint later said in an interview with The Korea Times, "People who came before us didn't have much interest in rhyming; artists before us were satisfied with talking fast and thinking that it was rapping – and that sold then."

[9] Verbal Jint began his rap career as a member of the Korean hip hop crew "Show N Prove" (SNP) and released his first solo songs in 1999, including, "Big Brag," "How High School," and "Foul."

In 2011, Verbal Jint collaborated with Swings, San-E, L.E.O., Baby Bu, Dawn, and designer Brownbreath on the song, "Stand Up, Japan!," with all proceeds from the digital single donated to help relief efforts after the Japanese Tohoku tsunami.

][18] He promoted the single in October on music program You Hee Yeol's Sketchbook, where he also discussed his side-career as a voice actor in commercials.

"[22] His team, composed of himself and rookie rapper Go Young Bin, was eliminated in the second round after a performing a hip hop version of miss A's "Breathe.

[25][26] He performed "Good Morning" in a special collaboration with the band 10cm in July at the two-day Green Groove Festival in Boryeong, alongside After School, Son Dambi, Wonder Girls and Akon.

[27] Verbal Jint participated in several successful collaborations in 2013, including the hit singles "If It Ain't Love" featuring Ailee, "Hello" by legendary singer Cho Yong-pil, "Take Care of Christmas" with Shin Seung Hun, and a cover of Deux's "Only For You" with Bumkey.

That year, he fulfilled his long-time wish to collaborate with Hyolyn of SISTAR when she surprised him with an unscheduled appearance on You Hee Yeol's Sketchbook and subsequently featured in his performance of "You Look Good.

In May 2014, Verbal Jint went on a world tour with Bumkey, Beenzino, Kanto, and Hwayoung, holding concerts in New York City, Seattle, Los Angeles, and Sydney.

He was featured along with Beenzino, Bobby, BI and Mino in Epik High's single "Born Hater" off their eighth studio album Shoebox.

The music video was scheduled for pre-release on October 17, but was delayed one day to pay respect to the victims of the Pangyo Techno Valley vent collapse.

In 2015, Verbal Jint made his first appearance on the TV variety show Running Man in a "hip hop star special" with Jay Park, Jessi, and other rappers.

He featured on charted singles from show contestants Black Nut and Basick, the latter of whom won the season as part of "Team Brand New Music.

After the show's finale, Verbal Jint performed with the judges and contestants from the season in a world tour in South Korea and the United States.

[52] He also featured on several singles, including Girls' Generation's Taeyeon's solo debut's title track "I," which ranked number one across eight different real time music charts shortly after its release on October 7.