For decades, The Beatles' Sgt. Pepper's Lonely Hearts Club Band has ranked highly on many All-Time Best Album lists. Celebrated as the first quasi-concept album in rock, fans and critics have long lauded the songcraft, the pioneering production sounds, and its colorful, now iconic, cover art. Some say it both reflected and drove the burgeoning youth culture through the "Summer of Love" in 1967. In more recent years, some critics have tried to cut through the mythology of the album and reconsider it in every way.