21 Vocals credits
5 tracks
Cyanide
Go Big
Lock Down
No Questions
Sling Shot
2 tracks
Breathtaking
Do 4 Me
I'll go first
학원歌 (Anthem of Teen Spirit)
FULL METAL JACKET
Surrender
사랑歌 (Hymn to Love)
첫사랑의 법칙 (First Love's Law)
3 tracks
사랑하는 내 님아 (My Darling)
안녕, 나의 첫사랑 (Goodbye, My First Love)
1 track
청춘에게 (Youth2Youth)
My Girl
UNIVERSE
Graduation Day
여우가 시집가는 날 (Sunshower)
잃어버린 것들에 대하여 (Closer)
