HyunA – I'm Not Cool

Arranged By – Spaceone
Arranged By – Yoo Gun-hyung
Arranged By – Slyme Young
Chorus – Han Seo Yoon
Chorus – Katie Kim (2)
Composed By – Spaceone
Composed By – Yoo Gun-hyung
Mastered By – 권남우
Mixed By – 구종필
Producer – Psy (7)
Recorder – Kiho Lee
Synth – Spaceone
Synth – Yoo Gun-hyung
Written-By – Dawn (76)
Written-By – HyunA
Written-By – Psy (7)

Chorus – Katie Kim (2)
Composed By – Caesar & Loui
Mastered By – Joe LaPorta
Mixed By – 구종필
Mixed By, Musical Assistance – Kang Seong Yong
Recorder – Kiho Lee
Written-By – HyunA

Arranged By – 박해일
Arranged By – 빅싼초
Chorus – 전재희
Composed By – 박해일
Composed By – 재리포터
Mastered By – 권남우
Mixed By – 조씨아저씨
Recorder – Kiho Lee
Synth – 박해일
Written-By – 재리포터
Written-By – 빅싼초

Arranged By – Devine Channel
Bass Drum – Kei Lim
Chorus – Dawn (76)
Chorus – Sole (12)
Chorus – HyunA
Composed By – Dawn (76)
Composed By – TYB
Composed By – Devine Channel
Featuring – Dawn (76)
Mastered By – 권남우
Mixed By – Irko
Synth – 서재우
Written-By – Dawn (76)
Written-By – Yorkie (5)

Arranged By – Spaceone
Chorus – Katie Kim (2)
Chorus – HyunA
Chorus – Anna Timgren
Composed By – Spaceone
Composed By – Yoo Gun-hyung
Composed By – Anna Timgren
Composed By – Psy (7)
Mastered By – Joe LaPorta
Mixed By – Jaycen Joshua
Producer – Spaceone
Producer – HyunA
Producer – Anna Timgren
Producer – Psy (7)
Producer – Yu Geon Hyeong
Synth – Spaceone
Written-By – Psy (7)