The melody of Fall In Line by Christina Aguilera feat. Demi Lovato runs 502 notes across 87 bars, 3:51 long in Am at 120 beats per minute. The tab sits almost entirely in the first two frets, 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? Fall In Line chords and lyrics.