DAY6 · Individual Career Record
SUNGJIN
DAY6’s leader, vocalist and guitarist, known for his grainy vocal tone and a songwriting approach built around emotional clarity.
Profile Reference
Individual Career Milestones
2015
DAY6 debut
Debuted with DAY6 on The Day and became the group’s leader, vocalist and guitarist.
2021–2022
Military service
Completed mandatory military service before returning to music activities.
2024 · March
Fourever
Returned with DAY6 as part of the four-member lineup.
2024 · November
Solo debut · 30
Released his first full-length solo album 30, led by “Check Pattern,” and participated across the album’s credits.
2024 · November
First solo concert
Held SUNGJIN SOLO CONCERT [30] in Seoul across three sold-out shows.
2025
DAY6 10th anniversary
Participated in The DECADE album, stadium concert and anniversary tour.
2026 · September
No Brain 30th anniversary project
Joined DOWOON for a remake of No Brain’s “You Fell for Me.”
Verified Further Reading
KWaveScope original English editorial record · last reviewed September 23, 2026.