We’ll pick this topic up in the middle. Below is from a post on this forum. There were two Paul McCartneys in the one Beatles band. The first Paul we had up until near the end of 1966. The new Paul took his place during 1967. This isn’t speculation. Its scientifically provable.
“Billy Shears” is actually a joke name. It may be that British MI6 still has the institutional memory to know that William Shakespeare was an imperial covert team effort. Much as the two Paul McCartney’s now seem to have been. William Shakespeare …… Billy Shakespeare …… Billy Shakespeares, Billy Shears. Then there is the blowing smoke in peoples face that comes from setting up a Paul McCartney lookalike contest, and actually running that contest, and then putting about the Billy Shears story. Saying he was an ex-cop from Ontario or some such other jive. Probably a great deal of phoney stories put about and vigorously promoted.
More likely the reality was that William Shepherd was part of the Paul McCartney shadow songwriting team right from the start. And both the collected McCartney ideas-machine and the switcheroo were planned from the start. Which could mean the original Paul McCartney may still be alive …. or otherwise.
See how The Monkees also had a songwriting team but explicitly so. The way I’d do it if I was the shadow government would be to have a shadow Paul McCartney team, that came up with a great many incomplete song ideas, to be completed via the Fab Four, giving it a more naturally creative sound. So you’ve got a very intelligent and creative John Lennon, whose there as the best ideas-man, but he’s out of the loop. If you didn’t do it this way the resultant sound ……. well what you’d wind up with …. the outcome would be too much like what the Monkees produced. Beautiful songs, very polished, each one a hit, but rather lame and shallow and very easy to spot that its a team effort and the kids are being handed their breaks. Totally different from the idea of the Beatles as this magnificent four-way magically creative machine. It wouldn’t wind up sounding like the creative efforts of four idiosyncratic yet superior artists, unless you used a shadow Paul McCartney team to produce a lot of ideas, then those ideas worked out to completion with the known four Beatles.
Here we have also the reason for the sudden appearance of grunginess, facial hair, and the retreat from performing to purely studio work. We also have a reason why Paul McCartney (Mark II) became somewhat paralysed as an artist, and could only write bland and inoffensive material, once he’d cut loose on his own.
The new seemingly creative-genius, to the three band members out of the loop, shows up and immediately takes charge. But clearly he is known to the other three. Known from the obscure band “Billy Pepper And The Pepperpots.” So the new band emerges calling itself “Sargent Peppers” band. The death of Paul (at least to the three remaining Beatles) becomes a creative driving force for the bands next three albums. In the course of writing the title track, the faux-bands name is expanded to “Sargent Peppers Lonely Hearts Club Band.”