The Beatles' last days as a band were as productive as any major pop phenomenon that was about to split. After recording the ragged-but-right Let It Be, the group held on for this ambitious effort, an album that was to become their best-selling, and their last as a group. Though all four contribute to the first side's writing, John Lennon's hard-rocking, "Come Together" and "I Want You (She's So Heavy)" make the strongest impression.