Q. What do the Rolling Stones have in common with Bob Dylan?
A. They can't sing either.
Compare Susan Boyle's version of Wild Horses to the massacring of the same by the Rolling Stones. This can be done by putting "Wild Horses" into the search box of Spotify, and listening to the one after the other. If you do not already have a Spotify account (free) you will need to click on the "download" tab and follow the instructions from there.
The whole of Susan Boyle's album can now be accessed on Spotify. I found her rendition of Silent Night quite powerful.
PS. If anyone reading this ever bought a Rolling Stones record, and can explain why they did so in the comments box, it would contribute considerably to my understanding of human nature!