The notion of artists taking their time in the studio has become so ingrained in the recording process that it's hard to believe that musicians used to bang out killer albums in a hurry.
On Feb. 9, 1964, the world of rock music -- and American culture in general -- was turned upside down by the Beatles' debut performance on The Ed Sullivan Show.
At the start of February 1968, the Beatles found themselves, after a month-and-a-half break, back in Abbey Road studios to begin work on their next single, their first release of 1968.