A recent study of past and present pop music sought to rank the greatest singers of all time on the basis of their vocal range.
We think it's safe to say the results are... surprising.
For example, if you can predict ahead of time which two crooners tied for the top spot, well then you, sir or madam, have quite the ear for music.
You should probably replace all three judges on American Idol and produce Caleb Johnson's first number one record.
In other words, you can't predict this list. No one can.
We've all got our ideas of what constitutes good and bad music and this list throws concepts like creative ingenuity, songwriting ability and stage presence right out the window and judges artists solely by the highest and lowest notes they can hit.