The melody of I Want You Back by *NSYNC runs 383 notes across 58 bars, 3:43 long in Eb at 100 beats per minute. The tab sits low on the neck, mostly under the fourth fret, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? I Want You Back chords and lyrics.