If I had to pick the most important iconic and historically influential album of all time, it would be this one. The Beatles were so far ahead of their time by this point that they almost lost their audience. People didn't know what to make of it. If Brian Wilson was devastated by Rubber Soul, he lost it completely when he heard Revolver. This album changed all the rules for rock music. Even its follow-up, Sgt. Pepper, did not redefine music to the degree that the Beatles did here.