The Best Years Of My Life by Diana Ross is in Bb at 80 beats per minute and runs 3:15 across 38 bars. It uses 29 chords — F, Bb, C, Dm7, Gm9, C7, D7, C6, 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 Best Years Of My Life guitar melody tab.