Have Yourself A Merry Little Christmas by Sam Smith is in Bb at 65 beats per minute and runs 2:35 across 39 bars. It uses 32 chords — N.C., F, D7, Gm7, C7sus4, C7, Fmaj7, Dm7, and a few more. 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? Have Yourself A Merry Little Christmas guitar melody tab.