A Good Night by John Legend featuring BloodPop is in Cm at 112 beats per minute and runs 3:17 across 81 bars. It uses 8 chords — Ebmaj7, Cmaj7, F, D, Cm, Am, Bb, G. The chord diagram changes as the song plays and the words light up as they are sung, so you can strum and sing along without reading ahead.
Want the melody line note by note? A Good Night guitar melody tab.