Jooheon was born Lee Jooheon (이주헌) in Seoul, South Korea. He was raised in Daegu. In 2014, he was part of the project group Nu Boyz alongside Shownu, Wonho, and #GUN). In December 2014, Jooheon competed in the survival program No.Mercy and was selected to become a member of Monsta X.
Jooheon made his debut as a member of Monsta X on May 15, 2015 with the release of their first mini album Trespass.
In summer 2015, Joohen competed in the fourth season of Show Me the Money where he was eliminated in the third round. In 2016, he was selected as one of the producers for the JTBC hip-hop competition Tribe of Hip Hop.
In 2017, he released a solo MV for the song "Rhythm" and in August 2018 he released the mixtape DWTD.
In February 2019, Jooheon announced he was changing his stage name to Joohoney for English-language activities.
In January 2020, Jooheon took a temporary hiatus from promotions with Monsta X in order to focus on his mental health. He rejoined the group for promotions for the release of the mini album Fantasia X.
In October 2020, Jooheon released the mixtape Psyche.
|SUPEXX||July 10, 2015||Mixtape|
|Flower Cafe||November 11, 2015||Mixtape|
|DWTD||August 31, 2018||Mixtape|
|Psyche||October 9, 2020||Mixtape|
|2015||Show Me the Money 4||Contestant||Mnet|
|2016||Celebrity Bromance||Cast Member (with Jackson Wang)||MBigTV|
|2016||Tribe of Hip Hop||Producer||JTBC|
|2016||Weekly Idol||Co-Host||MBC Every1|
|2019||Produce X 101||Battle Rap Trainer||Mnet|
|2020||King of Mask Singer||Contestant||MBC|