I Didn’t Plan It by Sara Bareilles is in Em at 121 beats per minute and runs 3:14 across 77 bars. It uses 10 chords — Em, Dsus, G, G5, D, C, A7, F, 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? I Didn’t Plan It guitar melody tab.