OKOK - OK [digital single] (2017) by OKOK (보컬) on maniadb.com

Performed by OKOK 1기 (2010)
- Super Moon : 보컬
- 이래언 : 보컬

Producer : OKOK
편곡 : OKOK
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Produced by OKOK
Music & Words by OKOK
Arranged by OKOK
Piano by Im nam-kyeong
Guitar by Park joon-ha 
All Programming by OKOK 
Recording by Yang ha-jeong (@Tone Studio)
Mix & Mastered by Austin leeds (@Austinleeds Studio) 
Artwork & Design by ZiBEZI
Fashion Director by Otto & Yo-z
Photograph by HELLDOG's
Special Thanks to Bae sun-ho, 드링크워터 (Drink Water)