two of the best female vocalists of this generation in a battle of big high notes and falsettos, Christina Aguilera VS Perrie Edwards, remember that the 2 have one of the widest vocal ranges of the indrustia the vocal range of Christina Aguilera is (4.4 Octaves and 1 Semi-Tone) and the vocal range of Perrie Edwards is (4.1 Octaves and 1.5 Notes).

Both have a very similar voice color, always show powerful vocals and impressive high notes, although Christina Aguilera has proven to be one of the best singers in history, Perrie over the years has proven to be an extraordinary vocalist and a of the best of his generation.

Who has the best top grades? Christina Aguilera or Perrie Edwards?