Un Dia Llegara by Josh Groban is in Gm at 96 beats per minute and runs 3:57 across 82 bars. It uses 50 chords — Dm, Gm, A7, Bbmaj7, Bb6, Em7, Gm7, N.C., 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? Un Dia Llegara guitar melody tab.