1. Winter Ahead (with 박효신) Produced by HYESUNG(혜성), Waizmin (박효신, V, HYESUNG(혜성), Jesse Harris, Waizmin) Keyboard - HYESUNG(혜성), Waizmin Drum - HYESUNG(혜성), Waizmin Bass - HYESUNG(혜성), Waizmin String Arrangement - HYESUNG(혜성), Waizmin Background Vocals - Milena (밀레나) Vocal Programming - HYESUNG(혜성), Milena (밀레나) Vocal Arrangement - Pdogg Recording Engineers - Pdogg @ Dogg Bounce 최혜진 @ HYBE Studio Digital Editing - Pdogg, 김수정 Mix Engineer – Mark “Spike” Stent @ SLS (Assisted by Matt Wolach, Kieran Beardmore) 2. Winter Ahead (with 박효신) : 윤석철트리오 Ver. Remixed by 윤석철 Produced by HYESUNG(혜성), Waizmin (박효신, V, HYESUNG(혜성), Jesse Harris, Waizmin) Piano - 윤석철 Drums - 김영진 Bass - 정상이 Background Vocals - Milena (밀레나) Vocal Programming - HYESUNG(혜성), Milena (밀레나) Vocal Arrangement - Pdogg Recording Engineers - Pdogg @ Dogg Bounce 최혜진 @ HYBE Studio 윤석철 @ blank shop studio Digital Editing - Pdogg, 김수정 Mix Engineer - 김지엽 @ Delightsound Studio