The Greatest Gift by James Corden is in Eb at 150 beats per minute and runs 4:32 across 104 bars. It uses 17 chords — B, Bb, C, Eb, F, Cm, Gm, F7sus4, 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 Greatest Gift guitar melody tab.