Life Is Wonderful by Jason Mraz is in Am at 112 beats per minute and runs 3:23 across 76 bars. It uses 7 chords — Am, Dm, F, Fm, C, G, Am6. 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? Life Is Wonderful guitar melody tab.