O Come, All Ye Faithful by Rebecca St. James is in D at 110 beats per minute and runs 3:53 across 49 bars. It uses 19 chords — D5, D, B5, D6/9, Gsus2, A, G, Em7, 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? O Come, All Ye Faithful guitar melody tab.