[8] Zion.T made his musical debut in 2011, collaborating with Korean hip hop artists such as Dok2, Crucial Star, Simon D, Primary and Gray.

On April 9, 2013, Zion.T's first studio album, Red Light, was released with the title track "Babay", featuring Gaeko.

[10] In December, he released the EP Mirrorball ("미러볼") with the title track "Miss Kim" (미스 김).

[11] In 2014, he released the digital single "Yanghwa BRDG", which became a hit and contributed to his rising mainstream success as an artist in Korea.

That July, he participated in the biennial music festival event hosted by the MBC variety show Infinite Challenge, which resulted in a spike in domestic sales of his previously released singles.

[16] Zion.T finished the year with two wins at the annual Mnet Asian Music Awards,: Best Vocal Performance (Male) for "Eat " 꺼내먹어요 and Best Collaboration, with Crush, for the song "Just" 그냥, beating more well-established artistes in an idol-focused industry.