The Prayer by Andrea Bocelli & Celine Dion is in Ab at 70 beats per minute and runs 4:12 across 49 bars. It uses 36 chords — Abmaj9, Ab, Ebsus4, Eb, Cm7, B, Abm, Eb69, 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 Prayer guitar melody tab.