Just Fine by Mary J. Blige is in G at 123 beats per minute and runs 4:12 across 75 bars. It uses 9 chords — Am7, Bm7, Em7, Em, F, C, D, C11, 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? Just Fine guitar melody tab.