Credits adapted from album liner notes.
Locations ; Recording • JYPE Studios, Seoul, South Korea • Studio Instinct, Seoul, South Korea • E.one Sound, Seoul, South Korea • Heavymental Studios, Seoul, South Korea • NUPLAY Studio, Seoul, South Korea • Studio567, Seoul, South Korea • Banzak Studio, Seoul, South Korea ; Mixing • Mirrorball Studios, North Hollywood, California • JYPE Studios, Seoul, South Korea • Studio Sean, Seoul, South Korea • Cube Studio, Seoul, South Korea ; Mastering • Honey Butter Studio, Seoul, South Korea • Sterling Sound, New York City, New York • 821 Sound Mastering, Seoul, South Korea
Personnel •
J. Y. Park "The Asiansoul" – producer • Lee Ji-young – direction and coordination (
A&R) • Jang Ha-na – music (A&R) • Kim Yeo-joo (Jane Kim) – music (A&R) • Park Sun-hyeong – music (A&R) • Kim Ji-hyeong – production (A&R) • Choi A-ra – production (A&R) • Kim Je-na (Jenna Kim) – production (A&R) • Gong Da-yoon – production (A&R) • Kim Bo-hyeon – design (A&R) • Kim Tae-eun – design (A&R), web design, album art direction • Choi Hye-jin – recording, mixing and assistant mixing engineer • Eom Se-hee – recording and assistant mixing engineer • Jang Han-soo – recording and assistant mixing engineer • Friday of Galactika – recording engineer and chorus (on "Heart Shaker") • Jowul – recording engineer, vocal producer (on "Merry & Happy"), vocal director and background vocals (on "24/7") • Jeong Ho-hyun – recording engineer, all instruments and keyboard (on "Turtle" and "You in My Heart") • Earattack – recording engineer, and all instruments and
computer programming (on "Missing U" and "Rollin'") • bass (on "Missing U"), background vocals (on "Rollin'") and director (on "Don't Give Up") • Jeong Gyu-chang – recording engineer • Kevin Oppa (mr. cho) – recording engineer, vocals producer (on "Love Line"), computer programming, piano and digital editing (on "Jaljayo Good Night") • Frants – recording engineer, all instruments and computer programming (on "Look at Me") • Tony Maserati – mixing engineer • James Krausse – mixing engineer • Lee Tae-seob – mixing engineer • Lim Hong-jin – mixing and assistant mixing engineer • Staytuned – mixing engineer • Yoon Won-kwon – mixing engineer • Jossi Ahjussi – mixing engineer • Jeon Bu-yeon – assistant mixing engineer • Bae So-yoon – assistant mixing engineer • Park Jeong-eon – mastering engineer • Chris Gehringer – mastering engineer • Kwon Nam-woo – mastering engineer • Naive Production – video director • Kim Young-jo – video executive producer • Yoo Seung-woo – video executive producer • Choi Pyeong-gang – video co-producer • Kim Young-joon at Agency SEED – photographer • Kang Hye-in at Normallogic – album design • Kang Hye-in at Normallogic – album design • Choi Hee-seon at F. Choi – style director • Son Eun-hee at Lulu – hair and makeup director • Jung Nan-young at Lulu – hair and makeup director • Choi Ji-young at Lulu – hair and makeup director • Jo Sang-ki at Lulu – hair and makeup director • Zia at Lulu – hair and makeup director • Jeon Dal-lae at Lulu – hair and makeup director • Won Jung-yo – makeup director • Yoon Hee-so – choreographer • Kang Da-sol – choreographer • Today Art – printing • David Amber – all instruments, computer programming (on "Heart Shaker") • Avenue 52 – all instruments, additional programming (on "Heart Shaker") • Galactika – vocal director (on "Heart Shaker") •
e.Na – chorus (on "Heart Shaker") • Joe Lawrence – all instruments, computer programming (on "Merry & Happy") • Jihyo of
Twice – background vocals (on "Merry & Happy", "Likey", "Ding Dong" and "Love Line") • Nayeon of Twice – background vocals (on "Merry & Happy" and "Likey") • Kim Cho-young – background vocals (on "Merry & Happy") • Rado – all instruments, computer programming and background vocals (on "Likey") • Choi Hoon – bass (on "Turtle" and "You in My Heart") • Yoon Tae-woong – guitar (on "Turtle" and "You in My Heart") • Kim Yoon-ji – chorus (on "Turtle") • Kim Jong-seong – guitar (on "Missing U") • Nam Joo – background vocals (on "Missing U", "FFW" and "Rollin'") • Jeong Yoo-ra at Cassette08 – digital editing (on "Missing U", "Rollin'" and "Don't Give Up") • Jeong Dong-hwan & Park Ji-yong & Nusoul – keyboards (on "Wow") • Kriz – background vocals (on "Wow") • Park Gi-tae – guitar (on "Wow") • NAOtheLAIZA – all instruments and computer programming (on "FFW") • Antti Hynninen – all instruments and computer programming (on "Ding Dong") • Caesar & Loui – all instruments and computer programming (on "24/7") • Oh Han-sol – background vocals (on "Look at Me") •
Hyerim – background vocals (on "Look at Me") •
Fox Stevenson – all instruments and computer programming (on "Rollin'") • Bin – background vocals (on "Rollin'" and "Don't Give Up") • Darren Smith – all instruments and computer programming (on "Love Line") • Chris Wahle – all instruments and computer programming (on "Don't Give Up") • Kim So-ri – chorus (on "You in My Heart") • Kim Jun-soo – guitar (on "Jaljayo Good Night") • Lee Da-jeong – background vocals (on "Jaljayo Good Night") ==Charts==