To start learning Newjeans - Omg chords, build your understanding on these basic chords - F, Am, Bb, Bbm, F, Gm, F, Bbm, Dm, Am and Gm in sequence. Ease into the song by practicing at 63 BPM before reaching the track's full tempo of 127 BPM. Given the song's key of F Major, adjust the capo to align with your vocal range and chord preference.