He started writing music at the age of 17 and joined the hip hop duo Libra Twins in 2007, before debuting as a solo rapper in 2010.
[4] He made his musical debut at the age of seventeen in the hip hop group Libra Twins.
[5] Several years later, he signed with independent hip hop label Soul Company, working under the name Crucial Star.
Following the dissolution of Soul Company in 2012, Crucial Star moved to Grandline Entertainment.
In October 2015, Crucial Star's agency published a statement announcing that he and Unpretty Rapstar 2 contestant Heize were in a relationship.