The Beatles rebounded quickly from their Beatles For Sale blues with Help!, which is a monumental album for a number of reasons. First of all, it is the soundtrack to the film of same name, which means that the band was even more busy during this period than they were for Beatles for Sale, and secondly, it features a staggering number of hits. The last time I bothered to check, "Yesterday" was the most-covered song in the history of music, and it's not even my favorite track from this album (that would be "You're Gonna Lose That Girl"). Help! is a major achievement for a band whose career is marked by almost nothing but major achievements.