If there's a record in the sacred Beatles canon ripe for reimagining, it's Sgt. Pepper's Lonely Hearts Club Band. Released in June 1967, when the world was getting a little weird, this was the Fab Four's blatant embrace of the changing times. Brilliant and whimsical, it's considered by many to be the best album of all time, yet musicians seldom revisit its songs -- making Sgt. Pepper's fair game for mucking around with.