The First Noël by Josh Groban is in C at 65 beats per minute and runs 5:14 across 96 bars. It uses 43 chords — Bb, G7sus, G7, C, F, A, Bm7, E13, 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? The First Noël guitar melody tab.