The structured facts identify Jeonghoon (김정훈) as a vocalist and member of the Korean group UN, born January 20, 1980. The narrative material provided, however, concerns a different artist entirely and cannot be applied to this profile.
With only the biographical data points available — group membership, vocal role, and date of birth — there is not sufficient sourced material to construct a fuller narrative profile. A short, accurate entry is the appropriate result.
Jeonghoon is a Korean vocalist and member of UN, the long-running Korean duo known for their work in the adult contemporary and ballad space. Beyond his role as a vocalist within the group, further details about his solo activities, discography, and career milestones are not available in the current source material.
