I Believe by Fantasia is in Db at 67 beats per minute and runs 4:18 across 60 bars. It uses 11 chords — Gb, Db, Ab, Bbm7, Fm, Ebsus2, Eb, Fb, 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 Believe guitar melody tab.