Yes, along with those who deny that human action is the primary cause of this century’s global warming, there are people who deny that the Beatles ever existed.  Their basic argument:

There was never just one group of 4 individuals calling themselves “The Beatles” who rose to world stardom.There were multiples of each character performing as “John”, “Paul”, “George” and “Ringo”. Each part of the world appears to have had its own Beatles group, And even then, there were sometimes multiple characters within. They all looked identical to each other except for a few features here and there.But what was most pronounced was their fluctuating height differences.

Sounds  like perfect new allies for deniers and delayers,  along with old standbys like the Flat Earth Society,  and the people who insist that the moon landing was faked(warning: annoying video on autoplay).