HWASA The 2nd Mini Album [O]나를 하나로 정의하자면 뭘까하나의 원이 떠올랐다원 안에 모든 걸 담을 수 있을 것 같았다O는 나의 유연함을 나타내며 긍정의 힘이다내가 그린 이 원에서 즐겁게 머물길 바란다1. RoadLyrics by Paige Garabito, Alex Karlsson, Yeji Kim(BMI), Ellen Jie Won ParkComposed by 박우상(LOGOS), 화사Arranged by 박우상(LOGOS)Background Vocals by 화사, 박우상Guitar Performed by 유지훈Piano Performed by 박우상Recorded by 박우상 @LOGOS StudioDigital Editing by 이기호Mixed by 박우상 @LOGOS StudioMastered by Randy Merrill @Sterling Sound2. HWASALyrics by 조윤경, PSYComposed by 유건형, 안신애, PSYArranged by 유건형Background Vocals by 화사, 안신애Bass Performed by 고태영Guitar Performed by 고태영Piano Performed by 유건형Recorded by 이기호, 허휘 @P NATIONDigital Editing by 이기호, 허휘 @P NATIONMixed by Stay Tuned @Stay TunedMastered by Randy Merrill @Sterling Sound3. NALyrics by PENOMECO, DAMIAN, PSYComposed by 유건형, Thomas Brown, Amanda Ratchford, Marlon Roudette, Theron Makiel Thomas, PSY, 안신애, Tricia Battani, G’harah “PK” DegeddingsezeArranged by 유건형Background Vocals by 화사, 안신애Synth Performed by 유건형Rap Directed by DAMIANRecorded by 이기호, 허휘 @P NATIONDigital Editing by 이기호, 허휘 @P NATIONMixed by Stay Tuned @Stay TunedMastered by Randy Merrill @Sterling Sound4. EGOKorean Lyrics by 서지음Composed by 유건형, Nicole"KOLE" Cohen, Mike Daley, Mitchell OwensArranged by 유건형 Background Vocals by 화사Synth Performed by 유건형Recorded by 이기호, 허휘 @P NATION Digital Editing by 이기호, 허휘 @P NATIONMixed by Stay Tuned @Stay Tuned Mastered by Randy Merrill @Sterling Sound 5. OK NEXTLyrics by 이지연(라라라 스튜디오), 박우상(LOGOS), 화사, 금토(153/Joombas)Composed by 박우상(LOGOS), 화사, Kurtz(LOGOS)Arranged by 박우상(LOGOS), Kurtz(LOGOS)Background Vocals by 화사Recorded by 박우상 @LOGOS StudioDigital Editing by 박우상 @LOGOS StudioMixed by 박우상 @LOGOS StudioMastered by Randy Merrill @Sterling Sound6. just want to have some funKorean Lyrics by 화사Composed by 라이언전, Diederik van Elsas, Parrish Warrington, Sophie Frances CookeArranged by 라이언전, TracksideBackground Vocals by 화사Recorded by 박우상 @LOGOS StudioDigital Editing by 이기호Mixed by 박우상 @LOGOS StudioMastered by Randy Merrill @Sterling Sound 7. OLyrics by 박우상(LOGOS), 화사Composed by 박우상(LOGOS), 화사Arranged by 박우상(LOGOS)Background Vocals by 화사Guitar Performed by 유지훈Synth Performed by 박우상Drum Programing by 박우상Strings Arranged and Conducted by 권석홍Strings Performed by RB-INJStrings Recorded by 신대용, 김용섭 @Infinity StudioRecorded by 박우상 @LOGOS StudioDigital Editing by 이기호Mixed by 박우상 @LOGOS StudioMastered by Randy Merrill @Sterling Sound