[Credit]

Song: Before 4:30 (She Said?
Artist: Sam Kim, Mew Suppasit
Music: R&B
Lyrics: Sam Kim
Producer: Sam Kim
Vocal Director: Sam Kim
Arranger: Sam Kim
Engineer: (Vocal) Simon Petr?
(Instrument) Lee Chang Sun @Prelude Studio
Mixing: Simon Petr?
Mastering: Kwon Nam Woo @ 821 Sound
Drum: Shin Issac (SHINDRUM)
Bass: Yang Kyung Ah
Electric guitar: Jung Suk Hoon
Piano: jun_p
MIDI Programming: Sam Kim, Simon Petr?
Chorus: Sam Kim, Mew Suppasit