Choi Jung-hoon is a South Korean musician, singer, songwriter, and record producer best known as the frontman and principal songwriter of the Korean indie rock band Jannabi.

Jannabi is a South Korean indie rock band that was formed in 2012 and debuted in 2014 under the independent record label Peponi Music, whose core membership consisted of vocalist Choi Jung-hoon and guitarist Kim Do-hyung. Originally a quintet, the duo has expanded to include session musicians at present. They are recognized for their live performances and self-produced songs infused with Korean lyricism. Though their sound has diversified throughout their career, their music is characterized by a fusion of pop, classical music elements, and nostalgic overtones. Their songwriting, often inspired by personal experiences and literature, mostly focuses on themes of youth and coming of age.