I Want You Back/Abc/ The Love You Save by The Jackson 5 is in Db at 90 beats per minute and runs 2:56 across 51 bars. It uses 20 chords — N.C., Ab, Eb, Fm, Cm, Db, Bbm7, Eb7, 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 Want You Back/Abc/ The Love You Save guitar melody tab.