1. jellyous
Produced by dwilly
(David Wilson, Colin Magalong, Sorana Pacurar, dyvahh, “hitman” bang, 김수지 (lalala studio), BELIFT LAB Inc., 김키위, 전지은, 문여름 (Jamfactory), 이스란, danke)

All Instruments - dwilly
Background Vocals - PERRIE, MINJU
Vocal Arrangement - 신쿵
Digital Editing - 신쿵, 우민정 @ 77F STUDIO
Recording Engineers - 전부연, 황민희 @ HYBE Studio
Mix Engineer - Kevin Grainger @ Wired Masters, London


2. jellyous (Feat. Sophie Powers)
Produced by dwilly
(David Wilson, Colin Magalong, Sorana Pacurar, dyvahh, “hitman” bang, 김수지 (lalala studio), BELIFT LAB Inc., 김키위, 전지은, 문여름 (Jamfactory), 이스란, danke, Sophie Powers, Cameron Hunter, Michael Gonek)

All Instruments - dwilly
Background Vocals - PERRIE, MINJU, Sophie Powers
Vocal Arrangement - 신쿵, Michael Gonek
Digital Editing - 신쿵, 우민정 @ 77F STUDIO, Michael Gonek @ Mike Gonek
Recording Engineers - 전부연, 황민희 @ HYBE Studio, Michael Gonek @ Mike Gonek
Mix Engineer - Kevin Grainger @ Wired Masters, London