Jar of Hearts by Christina Perri is in Ab at 100 beats per minute and runs 2:41 across 65 bars. It uses 10 chords — Cm, Eb, Bb, Fm, Ab, Bbsus4, Abm, G, 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? Jar of Hearts guitar melody tab.