100 Years by Five For Fighting is in G at 110 beats per minute and runs 4:17 across 95 bars. It uses 10 chords — G, C, Am7, D7sus, Em, Dsus, D, Em7, 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? 100 Years guitar melody tab.