“I Want You (She’s So Heavy)” is both the last time all four Beatles were in the studio, and their last breakthrough.

“Please Mister Postman” illustrates how the Beatles adapted other musical forms to create their own sound, both honoring their forebears and adding another dimension.

This King and Goffin track typifies the Beatles’ early era, a time when the band was forming their own identity.

“Devil in Her Heart” exemplifies the early Beatles, representing their eclectic song selection, willingness to take risks and ability to transform a cover.

For the next few columns, Deep Beatles spotlights some of their best covers – beginning with Ringo Starr’s rousing rendition of the Shirelles’ “Boys.”

Some lesser-known Prince songs – including deep cuts, b-sides and sometimes-overlooked singles – give us new perspective on his vast talents.

As politics continues to dominate the news in this U.S. election season, the Beatles’ “Piggies” resonates stronger than ever.

Without George Martin’s maverick streak, the Beatles may have never become one of the most influential bands in modern music.

The lesser-known friends, family and musicians who influenced the Beatles finally receive their due in David Bedford’s ‘Fab One Hundred and Four.’

The Beatles’ “Lovely Rita” provides a moment of levity to ‘Sgt. Pepper,’ distinguishing itself from other tracks through its raunchy subject matter and clunkier sound.