Underneath The Tree by Kelly Clarkson is in Ab at 160 beats per minute and runs 3:23 across 57 bars. It uses 15 chords — Eb, Gm, Cm, Abm, N.C., Gm7, Db, Fm7, 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? Underneath The Tree guitar melody tab.